[browser tests] re-enable find-replace suite

Use an alternate .js file in this test: previously used webpack.config.js
was triggering a large number of TypeScript code actions at opening [1],
which may have contributed to the test's instability.

[1]: when setting the cursor at (0,0), a quick fix was available

Signed-off-by: Marc Dumais <marc.dumais@ericsson.com>

examples/api-tests/src/find-replace.spec.js

@@ -40,7 +40,7 @@ describe('Find and Replace', function () {
     const shell = container.get(ApplicationShell);
 
     const rootUri = workspaceService.tryGetRoots()[0].resource;
-    const fileUri = rootUri.resolve('webpack.config.js');
+    const fileUri = rootUri.resolve('../api-tests/test-ts-workspace/demo-file.ts');
 
     const toTearDown = new DisposableCollection();
 
@@ -101,22 +101,22 @@ describe('Find and Replace', function () {
     }
 
     for (const command of [CommonCommands.FIND, CommonCommands.REPLACE]) {
-        it.skip(command.label + ' in the active editor', async function () {
+        it(command.label + ' in the active editor', async function () {
             await navigatorContribution.openView({ activate: true });
 
             await editorManager.open(fileUri, { mode: 'activate' });
 
             await assertEditorFindReplace(command);
         });
 
-        it.skip(command.label + ' in the active explorer without the current editor', async function () {
+        it(command.label + ' in the active explorer without the current editor', async function () {
             await navigatorContribution.openView({ activate: true });
 
             // should not throw
             await commands.executeCommand(command.id);
         });
 
-        it.skip(command.label + ' in the active explorer with the current editor', async function () {
+        it(command.label + ' in the active explorer with the current editor', async function () {
             await editorManager.open(fileUri, { mode: 'activate' });
 
             await navigatorContribution.openView({ activate: true });