[Epic] Resizetizer Documentation Improvements

[agneszitte]

• [ ] https://github.com/unoplatform/uno.resizetizer/issues/260
• [ ] https://github.com/unoplatform/uno.resizetizer/issues/262
• [ ] https://github.com/unoplatform/uno.resizetizer/issues/261
• [ ] https://github.com/unoplatform/uno.resizetizer/issues/239
• [ ] https://github.com/unoplatform/uno/issues/15869#issuecomment-2100875087

[agneszitte]

fyi @dansiegel, @MartinZikmund, @kazo0 I created this Epic issue to better track the doc improvements we need to do for Resizetizer