- Cleaning up unused files

- Removing 'qimgv-PIE.patch' and 'qimgv-includepath.patch' from use
- Adding (temporarily?) CFLAGS so build is successful
- Adding 'cmake(Qt5LinguistTools)' BuildRequires
- Update to version 1.0.3a+git20220914.d24f3fa:
* Update msys2-dll-deps.txt
* crash fix
* [msys2] update build script
* add ukrainian translation
* [contextmenu] use SetDefaultConstraint
* revert to gl player for now
* [settingsdialog] improve icons & minor stuff
* [settingsdialog] some design polishing
* new option - unlockMinZoom
* layout tweaks, finish other settings pages
* another settings mockup
* [imageviewerv2] add fixed zoom levels option
* croppanel - fix width
* workaround qt6 scaling issue with QImage::Format_Indexed8
* [viewerwidget] 'Up' arrow switches to FIT_WIDTH useful for quickly reading content while browsing with arrows
* [contextmenu] layout - scale to always fit contents
* Update settings.cpp
* fix overlays when using large font
* (wip) adjust widget size to accomodate oversized fonts
* use qt dpi rounding
* settings window update
* Core::loadTranslation() - fallback to applicationDirPath()/translations
* [settings] readable language names
* [settings] language selector, fix .qm loading