Remove fomantic button module (#30475)

CSS-only module. Button colors are reduced to this:

<img width="639" alt="Screenshot 2024-04-14 at 15 36 07"
src="https://github.com/go-gitea/gitea/assets/115237/882d6c02-d1de-44f2-b707-db02a9f5070d">

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

1 files changed, 3 insertions, 11 deletions

diff --git a/web_src/css/repo.css b/web_src/css/repo.css
index 52f9d5a6ca..887789115e 100644
--- a/web_src/css/repo.css
+++ b/web_src/css/repo.css
@@ -654,15 +654,15 @@ td .commit-summary {
   padding: 2px .5rem;
 }
 
-.repository.view.issue .issue-title .index {
+.issue-title .index {
   color: var(--color-text-light-2);
 }
 
-.repository.view.issue .issue-title .label {
+.issue-title .label {
   margin-right: 10px;
 }
 
-.repository.view.issue .issue-title .edit-zone {
+.issue-title .edit-zone {
   margin-top: 10px;
 }
 
@@ -1164,14 +1164,6 @@ td .commit-summary {
   font-size: 14px;
 }
 
-.repository.compare.pull .title .issue-title {
-  margin-bottom: 0.5rem;
-}
-
-.repository.compare.pull .title .issue-title .index {
-  color: var(--color-text-light-2);
-}
-
 .repository .ui.dropdown.filter > .menu {
   margin-top: 1px;
 }