New weather script + various changes

Major notes:

• New weather script using dmenu, curl and yad (duh)
• Zenity has been replaced with yad.

Yad is pretty "drop in" from my limited experience. If this proves to be harmful we can always revert

• CHANGELOG.md and TODO.md are removed.

No one was really giving them any love. I feel this is mostly my fault as I added them but I wasn't able to pay attention to them. Gitlab really documents this stuff anyways.

About the script

Hello! I had some free time and some motivation so I wrote a simple little weather script which will hopefully be useful.

It's WIP and in a future release I hope to greatly simplify the layout. (ideally so it fits in a notification or something.) Alternatively, just make it as customization as the website but in a YAD window.

Try it out, it's pretty basic rn but it works.