* Began refactoring http_get. Still a few cases to handle, but it works.
* Introduced error enum; handle error 406; handle a misbehaving server; redirect_url leaked memory (L888)
* Allowed calls to http_get to pass NULL as acceptable_mime_types
* Removed status_code from header struct; eventually planning to move most of parse_header's logic back to http_get, so this makes sense
* Moved some more logic back into http_get
Note: currently behaves weirdly with some QR codes, including but probably not limited to ones pointing to TinyURL.
* Handle redirects correctly; other rearrangements
* Formatting
* Handle HTTP 303 See Other correctly
* Removed "Download failed" error in camera.c due to all related failures being handled in http_get
* Fixed missing loading bar; started working on unchunked download
* Added unchunked download
* Reintroduced the download progress bar, rolled back to always doing chunked download
* URL length caps at 2083 chars
* Slightly more efficient
* Correctly handle incorrect filesize header
TODO: reorder clauses to remove the goto?
* Fixed illegal characters, removed unnecessary logic (technically a regression, as we always have to realloc now)
* Finally finished up status code handling. Fixed a memory leak when the server fails conneg.
- when loading icons
- when downloading via QR
- when loading list in the browser
- when loading preview/BGM in the browser
- when downloading from the browser
* change fs to use a FS_Path argument for remake_file and buf_to_file
* more debug information when downloading
* browser caching v1: poc, works and is fast but not ideal
* add preview to cache
* this wasnt meant to be added now
* builds at least
* meh, multithreading will come later. or never
* movement added, and correct grid mode
* switching splash/themes when in browser mode
* closer to the actual themeplaza menu
* bring back downloading from qr
* show a download screen when downloading from browser
* fix selecting with touchscreen in browser mode
* update readme for jansson
* fix quitting with start in browser mode
* add jump menu for browser mode
* rotate is broken, add working touchscreen page changing
* allow quitting preview mode with B in browser mode
* proper way to have portlibs
* add searching
* show error when search has no results
* always free entries and icon ids
