fix: simplify code navigation and support Gazebo XML files

Remove redundant code-view cancellation and align button labels. Restore module scrollbar thickness while preserving workspace colors, and support config, SDF and world text files locally and remotely.

scripts/test-studio-theme.cjs

@@ -47,7 +47,7 @@ test('theme synchronizes across windows without writing runtime settings', () =>
   assert.equal(api.useStudioTheme(), 'dark')
 })
 
-test('module content horizontal scrollbar uses the shared workspace scrollbar style', () => {
+test('module content scrollbar uses workspace colors without thinner scrollbar dimensions', () => {
   const source = ts.createSourceFile('ModuleListView.tsx', fs.readFileSync(path.join(root, 'ModuleListView.tsx'), 'utf8'), ts.ScriptTarget.Latest, true, ts.ScriptKind.TSX)
   const scrollClasses = []
   function visit(node) {
@@ -59,5 +59,8 @@ test('module content horizontal scrollbar uses the shared workspace scrollbar st
   }
   visit(source)
   assert.ok(scrollClasses.length > 0)
-  for (const classes of scrollClasses) assert.ok(classes.includes('thin-x-scrollbar'))
+  for (const classes of scrollClasses) {
+    assert.ok(classes.includes('module-content-scrollbar'))
+    assert.ok(!classes.includes('thin-x-scrollbar'))
+  }
 })