* first step of rewriting: at least it compiles™
* fix tabs/spaces
* fix dabort on load
* fix preview crash
* sorting isnt done outside of loading
* step one of making remake_file useless
* camera/qr code cleanup
* fix dabort when folder is empty, and bring back preview optimization
* fix button for switching modes and show mode when folder is empty
* fix scanning qrs
* no more splash discrimination
* add debug helpers
* fix theme installing
turns out that wasnt such a good idea
* fix battery icon
* mistake
* themeplaza compatibility
* make use of load_data
* don't drink and copy-paste, kids
* fix user-agent
* remove useless
* cleanup includes
* not even used
* add splash buttons
* upgrade buttons drawing
* fix controls while preview is up
* improve positions
What this commit adds:
* Ability to apply a theme, given a folder
* Extract all .zip files in /Themes/ into a relevant folder
* Get all theme metadata from info.smdh
* Proper unicode handling
What's still needed for initial release:
* Theme shuffling
* GUI
