chore(e2e): Update global patterns

Guard against regressions in template classes (see https://codeberg.org/forgejo/forgejo/pulls/5892 for example)
Fix broken frontend test patterns as per https://codeberg.org/forgejo/forgejo/pulls/5734#issuecomment-2406914

tests/e2e/changes.go

@@ -34,10 +34,11 @@ func initChangedFiles() {
 		"tests/e2e/*.go",
 		"tests/e2e/shared/*",
 		// frontend files
-		"frontend/*.js",
-		"frontend/{base,index}.css",
-		// templates
+		"web_src/js/{index,utils}.*",
+		"web_src/css/{base,index}.css",
+		// templates and helpers
 		"templates/base/**",
+		"modules/templates/**",
 	}
 	fullRunPatterns := []glob.Glob{}
 	for _, expr := range globalPatterns {