desktop: rewrite reserved area handling + improve tests (#12383)

.github/actions/setup_base/action.yml

@@ -24,6 +24,7 @@ runs:
           glm \
           glslang \
           go \
+          gtest \
           hyprlang \
           hyprcursor \
           jq \

.github/workflows/nix-ci.yml

@@ -25,6 +25,5 @@ jobs:
 
   test:
     if: (github.event_name != 'pull_request' || github.event.pull_request.head.repo.fork)
-    needs: hyprland
     uses: ./.github/workflows/nix-test.yml
     secrets: inherit