Important changes:
* Refactored QtRequests to accept parameters for `GET` operations
* Infer response data type from content-type header
* Support caching to disk, a manager with this set prefers the cache
* Support multiple handlers for a single request (unused, possibly pointeless)
* Subclass `ShopImageWidget` for all widgets used in the shop
* Request a resized image instead of the original one
* Fix the search and browse functions
Since pyuic5 doesn't handle `connectSlotByName=False` in ui files
use sed in `misc/ui2py.sh` to remove those lines
Signed-off-by: loathingKernel <142770+loathingKernel@users.noreply.github.com>
