v2.0.0

Added/improved features and fixed bugs:

1. Added "Advanced Mode" for translation fine-grain control. resolved #18, resolved #24
2. Added more options such as endpoint/sampling/model to ChatGPT. resolved #34, resolved #46
3. Supported multiple API keys for all built-in translation engines. resolved #37
4. Added "Ignore Element" feature for excluding unneeded elements. resolved #41
5. Enhanced cache feature to include more information for reviewing. resolved #42
6. Added preferred input/output formats and preferred source language options. resolved #44
7. Added Azure ChatGPT to built-in translation engines. resolved #49
8. Added "Preferred Mode" for clicking icon button in general settings.
9. Added "Timeout" option to "HTTP Request" setting.
10. Optimized ChatGPT prompt for more accurate translating.
11. Fixed the bug that cannot filter paragraphs properly. fixed #41, fixed #45
12. Optimized user experiences, improved features and fix bugs.