SONAR-8330 Drop the word "Unit" from code viewer

sonar-core/src/main/resources/org/sonar/l10n/core.properties

@@ -1490,10 +1490,10 @@ duplications.collapse=Collapse
 #
 #------------------------------------------------------------------------------
 coverage_viewer.on_new_code=On new code
-coverage_viewer.by=by unit tests
+coverage_viewer.by=by tests
 it_coverage_viewer.by=by integration tests
 overall_coverage_viewer.by=by all tests
-coverage_viewer.unit_tests=Unit Tests
+coverage_viewer.unit_tests=Tests
 coverage_viewer.integration_tests=Integration Tests
 coverage_viewer.overall_tests=All Tests
 coverage_viewer.per_test=Per test
@@ -2852,7 +2852,7 @@ component_viewer.measure_section.severities=Severities
 component_viewer.measure_section.rules=Rules
 component_viewer.measure_section.issues=Issues
 component_viewer.measure_section.sqale=SQALE
-component_viewer.measure_section.unit_tests=Unit Tests
+component_viewer.measure_section.unit_tests=Tests
 component_viewer.measure_section.tests=Tests
 component_viewer.measure_section.test_cases=Test Cases
 component_viewer.measure_section.integration_tests=Integration Tests
@@ -2908,17 +2908,17 @@ component_viewer.workspace.tooltip=Keeps track of history of navigation
 component_viewer.workspace.show_workspace=Show workspace
 component_viewer.workspace.hide_workspace=Hide workspace
 
-source_viewer.ut.covered=Covered by unit tests
-source_viewer.ut.not_covered=Not covered by unit tests
+source_viewer.ut.covered=Covered by tests
+source_viewer.ut.not_covered=Not covered by tests
 source_viewer.it.covered=Covered by integration tests
 source_viewer.it.not_covered=Not covered by integration tests
 source_viewer.conditions=conditions
 
 source_viewer.tooltip.duplicated_line=This line is duplicated. Click to see duplicated blocks.
 source_viewer.tooltip.duplicated_block=Duplicated block. Click for details.
-source_viewer.tooltip.ut.covered=Fully covered by unit tests. Click for details.
-source_viewer.tooltip.ut.partially-covered=Partially covered by unit tests. Click for details.
-source_viewer.tooltip.ut.uncovered=Not covered by unit tests.
+source_viewer.tooltip.ut.covered=Fully covered by tests. Click for details.
+source_viewer.tooltip.ut.partially-covered=Partially covered by tests. Click for details.
+source_viewer.tooltip.ut.uncovered=Not covered by tests.
 source_viewer.tooltip.it.covered=Fully covered by integration tests. Click for details.
 source_viewer.tooltip.it.partially-covered=Partially covered by integration tests. Click for details.
 source_viewer.tooltip.it.uncovered=Not covered by integration tests.