Add all E2E snapshot files for the new ChatInput file type icons
to the DISALLOWED_SNAPSHOTS list in snapshot_cleanup.py.

Update tests to work with new inline error display system. The ChatInput
file upload component was refactored to show error messages directly in
the file chip instead of in tooltips. Tests were failing because they
were still looking for the old tooltip system using stTooltipHoverTarget.

Changes:
- test_file_upload_error_message_disallowed_files: Check inline error via stChatInputFileError
- test_file_upload_error_message_file_too_large: Check inline error via stChatInputFileError
- Update expected error text to match new format (application/json instead of json)

These snapshot files were mistakenly placed directly in __snapshots__/linux/
instead of in the proper st_chat_input_test subdirectory. Removing them as
they will be regenerated in the correct location by CI.

- Fix bug where File object was not passed to UploadFileInfo for rejected
  files, causing canRetry to always be false
- Update getRejectedFileInfo in FileHelper.ts to pass file parameter
- Update createDropHandler.ts error handler to pass file parameter
- Add E2E tests for retry functionality, upload spinner, cancel during
  upload, and filename tooltip

- Add proper synchronization in retry tests by waiting for file text
  to appear before checking error elements
- Remove spinner and cancel tests that relied on unreliable route
  interception to delay uploads (transient states are better tested
  in unit tests)
- Keep tooltip test for filename truncation which is reliable

- Use themed_app instead of app for test fixture (matches working test)
- Add set_viewport_size to ensure consistent rendering
- Add reset_hovering to dismiss tooltips before assertions
- Get uploaded_files with fresh locator after file_upload_helper

- Add retry attribute verification to test_file_upload_error_message_disallowed_files
- Remove separate retry tests that were failing mysteriously
- Keep tooltip test for filename truncation

- Add test_file_upload_retry_click_success test
- Uses route interception to fail first upload, succeed on retry
- Verifies retry attributes exist on error chip
- Verifies clicking retry transitions file from error to uploaded state
- Skips webkit due to network timing issues

- Remove '(no longer in tooltip)' historical context from comment
- Remove inline comment from skip_browser decorator