* Fix remaining style errors and wildcard imports
* Upgrade spotless to the latest stable version, exclude .github folder from spotless check and fix dead link
* Fix spotless matching scope of markdown files
* Change the content of alert to an array
* Increase unit test coverage
* Modify the code format
* Modify the code format
* Modify judgment statement
* Deleting invalid References
* Modify the previous code implementation and improve the test data
* Modify the code format
* Move the location of the Content conversion
* Remove useless code
* Change the code format
* Modify unit tests
* Modify unit tests
* Modify unit tests
* Changing the location of the code
* Modify the code
Co-authored-by: fanwanlong <fanwanlong@kezaihui.com>
Co-authored-by: 范万龙 <fanwanlong@fanwanlongs-MBP.lan>
* change email attachment filename to add random string to avoid always use same file
* change email attachment filename to add random string to avoid always use same file