* test: more unit tests
- Adjust vitest configuration to handle main process and renderer process tests separately
- Add unit tests for main process utils
- Add unit tests for the renderer process
- Add three component tests to verify vitest usage: `DragableList`, `Scrollbar`, `QuickPanelView`
- Add an e2e startup test to verify playwright usage
- Extract `splitApiKeyString` and add tests for it
- Add and format some comments
* fix: mock individual properties
* test: add tests for CustomTag
* test: add tests for ExpandableText
* test: conditional rendering tooltip of tag
* chore: update dependencies
