v2.4.1.2: Web UI refresh, new recording system

Added

• Saved layouts - save a layout under a name from the layout page's menu and open it anywhere with layout.html?layout=Name. Every screen showing it, OBS included, follows changes made from another device
• Clean feed for OBS (layout.html?program) - one browser source that shows the layout currently on air, with no controls. Switch with Take on air or Shift+1 to 9, and cameras glide into place. Stream Deck buttons can switch it through /program/take/<layout name>
• Camera list on the layout page (C) - click a camera to add it, or drag it onto a tile. Tiles can be dragged onto each other to swap them
• Undo on the layout page - an Undo button after removing or swapping tiles, and Ctrl+Z for any change
• Recordings panel - lists recordings saved on the KSP computer, with Play and Download from any device on the network
• Record, pause and stop from the camera viewer (Watch), not only from the main page
• The web UI shows the address other devices on your network can open

Changed

• New web UI look: overall more readable style with a bundled font, words instead of icons, and color only for recording, paused and watched
• The web UI no longer loads anything from the internet, so it works on a LAN without internet access
• The camera viewer shows the camera's name and recording state, and reconnects on its own
• Spotlight sizes the small tiles to match the big one, and they no longer jump to the bottom in fullscreen
• Settings are saved in PluginData/settings.cfg so updates no longer reset them. Your current settings move there automatically (CKAN users may need to set them once more)
• Performance overlay moved to Ctrl+Alt+F6 (Ctrl+Alt+F7 also opened the main window)

Fixed

• The Record button no longer stays disabled in browsers that cannot record on their own
• Camera cards no longer request snapshots while the page is in a background tab
• Card order and record groups are kept after a game restart