Release v1.8.1

• Installer: Fixed the recorder silently failing to load on fresh Windows installs by installing the Visual C++ runtime during setup.
• Recording: Fixed recording failing to start when the saved codec no longer exists (for example, after a GPU change). Segra now falls back to an available codec and shows a notice.
• Thumbnails: Fixed black thumbnails when the game was tabbed out. Segra now picks a different frame if the first one is black.
• Stability: Fixed several edge-case bugs across settings, uploads, the video player and game detection.
• OBS: Updated the OBS 32.2.2 build to FFmpeg 9.0.2. Fixed #214!