Launcher Window, Desktop Clarity, and Package Grid Workflow Improvements

Increased the default launcher window size to 1920x1080 and improved UI scaling for a more stable 16:9 layout.
Fixed desktop dock and package grid clarity issues caused by launcher window size, monitor resolution changes, and first-apply rendering inconsistencies.
Improved low-resolution behavior so the launcher fits the visible work area and the package grid applies more reliably on 1920x1080 displays.
Updated package grid sorting UX so Playtime, Recent, and Name A-Z can be toggled off to restore the user’s saved manual layout.
Removed the old Dragged toggle and Reset Manual Layout flow, and updated the manual/help text across all supported languages.
Changing grid columns or the Installed Only filter now clears outdated manual placements when needed, and Apply to Desktop now syncs visible UI settings more reliably before deployment.