dark mode and minor improvements

[TJHdev]

I've added dark mode and a few small features / bug fixes. The dark mode is accessible via another page called "preferences", it's a drop down so if anyone fancies creating more themes it should only require modification to ~2 files. I've changed the structure of a couple of the reducers to allow createSlice to use typescript more readily. I think it might cause an issue when reloading state from localStorage though so I might need your input on that.

Version 0.5.0

• feature Dark / Light mode with preferences page (@tjhdev)
• feature Go back - ESC shortcut key when in sub menus (@tjhdev)
• feature Shortcut page shortcut (cmd + h) (@tjhdev)
• feature Focus task title (cmd + e) (@tjhdev)
• bug fix Fix crash when dragging empty todo in final position (@tjhdev)
• bug fix Pressing ESC in notes removes focus on text area (@tjhdev)

I've replaced TodoTxtMac with FocusedTask and absolutely love it. Good job.

[RStankov]

This is great 🤩 I'll need a bit more time to fully review it.

[RStankov]

Checked the code it looks good. The use of CSS variables and data attributes is brilliant 👏

Added couple of comments around code improvements, before merging. The most critical is not to change the selectedScreen reduce structure, because this will break the app for current users.

[TJHdev]

I'll have some time on Wednesday to sort these out. Thanks for the feedback!

[TJHdev]

All the issues should be addressed in the above. The useTheme() you suggested is a lot neater. Let me know if there's anything else that stands out.

[RStankov]

Great work 🙌 Will merge in the weekend and test with beta group and release next week.

[TJHdev]

Sounds good! Cheers again for the feedback. I've learned quite a few patterns / tricks that will be useful in my job, I particularly like the absolute paths for imports.

Couple features I'd like to have a go at after these are merged in:

1. ability to customise the all the shortcuts like the global one you've implemented.
2. compatibility for windows (this may already work given that it's electron?)

[RStankov]

Merged. Thanks. Window compability seems interesting. Haven't used windows in a while, shouldn't be that hard though.