### Summary

Extend the template variable substitution to replace file paths. This
can be helpful for setting up log files & directories that should match
the repository name.

### PR Changes

 - Move files matching glob pattern when setting up repos from template
- For security, added ~escaping~ sanitization for cross-platform support
and to prevent directory traversal (thanks @silverwind for the
reference)
 - Added unit testing for escaping function 
- Fixed the integration tests for repo template generation by passing
the repo_template_id
- Updated the integration testfiles to add some variable substitution &
assert the outputs

I had to fix the existing repo template integration test and extend it
to add a check for variable substitutions.

Example:

![image](https://github.com/go-gitea/gitea/assets/12700993/621feb09-0ef3-460e-afa8-da74cd84fa4e)

Change all license headers to comply with REUSE specification.

Fix #16132

Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>

* Add initial playwright config

* Simplify Makefile

* Simplify Makefile

* Use correct config files

* Update playwright settings

* Fix package-lock file

* Don't use test logger for e2e tests

* fix frontend lint

* Allow passing TEST_LOGGER variable

* Init postgres database

* use standard gitea env variables

* Update playwright

* update drone

* Move empty env var to commands

* Cleanup

* Move integrations to subfolder

* tests integrations to tests integraton

* Run e2e tests with go test

* Fix linting

* install CI deps

* Add files to ESlint

* Fix drone typo

* Don't log to console in CI

* Use go test http server

* Add build step before tests

* Move shared init function to common package

* fix drone

* Clean up tests

* Fix linting

* Better mocking for page + version string

* Cleanup test generation

* Remove dependency on gitea binary

* Fix linting

* add initial support for running specific tests

* Add ACCEPT_VISUAL variable

* don't require git-lfs

* Add initial documentation

* Review feedback

* Add logged in session test

* Attempt fixing drone race

* Cleanup and bump version

* Bump deps

* Review feedback

* simplify installation

* Fix ci

* Update install docs

* Refactor AssertExistsAndLoadBean to use generics

* Fix tests

Co-authored-by: zeripath <art27@cantab.net>

Add nakedret, unconvert, wastedassign, stylecheck and nolintlint linters to improve code readability

- nakedret - https://github.com/alexkohler/nakedret - nakedret is a Go static analysis tool to find naked returns in functions greater than a specified function length.
- unconvert - https://github.com/mdempsky/unconvert - Remove unnecessary type conversions
- wastedassign - https://github.com/sanposhiho/wastedassign -  wastedassign finds wasted assignment statements.
- notlintlint -  Reports ill-formed or insufficient nolint directives
- stylecheck - https://staticcheck.io/docs/checks/#ST - keep style consistent
  - excluded: [ST1003 - Poorly chosen identifier](https://staticcheck.io/docs/checks/#ST1003) and [ST1005 - Incorrectly formatted error string](https://staticcheck.io/docs/checks/#ST1005)

* 2xx/3xx/4xx/5xx -> http.Status...
* http.StatusFound -> http.StatusTemporaryRedirect
* http.StatusMovedPermanently -> http.StatusPermanentRedirect

* Move user related model into models/user

* Fix lint for windows

* Fix windows lint

* Fix windows lint

* Move some tests in models

* Merge

* Remove unnecessary variable assignments

As title

* enable ineffassign

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

* Move db related basic functions to models/db

* Fix lint

* Fix lint

* Fix test

* Fix lint

* Fix lint

* revert unnecessary change

* Fix test

* Fix wrong replace string

* Use *Context

* Correct committer spelling and fix wrong replaced words

Co-authored-by: zeripath <art27@cantab.net>

* Fix data race in testlogger

* Update git_helper_for_declarative_test.go

* Start work on templates

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Continue work

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix IsTemplate vs IsGenerated

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix tabs vs spaces

* Tabs vs Spaces

* Add templates to API & start adding tests

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix integration tests

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Remove unused User

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move template tests to existing repos

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Minor re-check updates and cleanup

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* make fmt

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Test cleanup

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix optionalbool

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* make fmt

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Test fixes and icon change

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Add new user and repo for tests

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix tests (finally)

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Update meta repo with env variables

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Move generation to create page

Combine with repo create template
Modify API search to prioritize owner for repo

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix tests and coverage

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix swagger and JS lint

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix API searching for own private repos

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Change wording

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Fix repo search test. User had a private repo that didn't show up

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Another search test fix

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Clarify git content

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Feedback updates

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Add topics WIP

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Finish adding topics

Signed-off-by: jolheiser <john.olheiser@gmail.com>

* Update locale

Signed-off-by: jolheiser <john.olheiser@gmail.com>