feat: settings for temp unit and display toggles

Merge pull request #22 from wolffshots/temperature-and-weather

feat: initial implementation of weather display

Merge pull request #20 from wolffshots/bugfix-pressure-overflows-box

fix: added some logic and shifting to prevent pressure overflow

Merge pull request #17 from wolffshots/battery-charging-indicator

feat: add bolt to show battery charging

fix: reduced pen width after solar intensity arc and added new previe…

…w images

chore: fix some warnings and comment unused code

Merge pull request #13 from wolffshots/battery-display

feat: added battery readout

Merge pull request #9 from wolffshots/seconds-settings

feat(settings): add setting to show and hide seconds

feat: added app icon and previews for store listing