feat(settings): add "Start in fullscreen" option on Windows/Linux

close #923

lib/i18n/en.i18n.json

@@ -241,6 +241,8 @@
     "confirmExitOnBackDescription": "Show a confirmation dialog when pressing back to exit the app",
     "forceTvMode": "Force TV mode",
     "forceTvModeDescription": "Use the TV layout regardless of auto-detection. Useful on Android TV devices that don't report the leanback feature. Restarts the app on change.",
+    "startInFullscreen": "Start in fullscreen",
+    "startInFullscreenDescription": "Open Plezy in fullscreen mode at launch",
     "autoHidePerformanceOverlay": "Auto-Hide Performance Overlay",
     "autoHidePerformanceOverlayDescription": "Fade the performance overlay with the playback controls",
     "showNavBarLabels": "Show Navigation Bar Labels",
@@ -250,6 +252,7 @@
     "display": "Display",
     "homeScreen": "Home Screen",
     "navigation": "Navigation",
+    "window": "Window",
     "content": "Content",
     "player": "Player",
     "subtitlesAndConfig": "Subtitles & Configuration",