Expand game support, add Overwrite baseline tracking, fullscreen panels, and plugin/file UI improvements

• Add support for Oblivion and Fallout 3 profiles.
• Expand supported game list to Skyrim LE, Oblivion, Fallout 3, and Fallout New Vegas.
• Update setup and profile creation dialogs to use the shared supported game list.
• Add official plugin rules for Oblivion and Fallout 3.
• Expand official plugin handling while preserving scan-first behavior so missing DLC is not injected.
• Improve script-extender/content indexing support for OBSE and FOSE folders.
• Add automatic Data folder baseline indexing for Overwrite tracking.
• Make baseline creation automatic when missing instead of exposing a manual index button.
• Make baseline creation backward-compatible by excluding currently deployed DML files from the baseline.
• Replace the old untracked Data scanner behavior with baseline-based Overwrite candidates.
• Add Overwrite scan models and baseline repository/snapshot models.
• Add Overwrite panel showing new/changed files created after baseline indexing.
• Keep default game files out of Overwrite by treating existing target Data contents as baseline.
• Add Mods panel and Plugins panel as large floating scrollable dialogs.
• Add Open Fullscreen buttons for Mods and Plugins cards.
• Add drag-handle reorder support in Mods and Plugins panels.
• Add apply-full-order APIs for mod and plugin priority ordering.
• Preserve locked official plugins at the top during plugin reordering.
• Add large floating installer and file preview dialogs without user facing fullscreen toggle buttons.
• Change View Files to show folder/file summaries instead of dumping every deployed file.
• Add color highlighted folder summaries for winning, overwritten, plugin/archive, and config groups.
• Add safe empty folder cleanup for local deployment removals.
• Protect important top-level game folders from cleanup.
• Remove game selection chips from Deployment & Settings because game selection is profile controlled.