chore(ui): Disable direct autoimport of testing-library libs (#39346)

Things like `fireEvent` and some other imports would appear at the top
and we should always import from `sentry-test` instead.

Author: malwilley

.vscode/settings.json

@@ -32,7 +32,8 @@
   // Exclude Specific Files from Auto-Imports
   "typescript.preferences.autoImportFileExcludePatterns": [
     "**/node_modules/@storybook/theming/*",
-    "**/node_modules/@storybook/addons/*"
+    "**/node_modules/@storybook/addons/*",
+    "**/node_modules/@testing-library/*"
   ],
 
   "[typescriptreact]": {