No more pre-release yay! Added a bunch of stuff

• Add first-launch setup and profile persistence.
• Add profile management dialog with create/switch/delete support.
• Replace manual target path fields with target folder picker.
• Convert mod/plugin priorities to sequential 1-based ordering.
• Add startup migration for old 10/20/30 priority configs.
• Fix mod/plugin move operations by preserving swapped list order during normalization.
• Add compact mod rows with checkbox enable state and expandable actions.
• Add mod content indexing and display deployable/plugin/archive/config/setup/optional counts.
• Add two-phase archive install flow with PreparedArchiveInstall.
• Add BAIN/FOMOD installer detection and installer choice dialog.
• Add pending installer finalize/cancel handler.
• Improve archive import flow, 7z handling, and operation logging.
• Add Toast-based operation feedback and duplicate-operation guard.
• Added skinny screen support(Thanks SavageTheUnicorn)