feat: replace mpv config UI with raw text editor

lib/i18n/en.i18n.json

@@ -64,7 +64,7 @@
     "licenses": "Licenses",
     "switchProfile": "Switch Profile",
     "subtitleStyling": "Subtitle Styling",
-    "mpvConfig": "MPV Configuration",
+    "mpvConfig": "mpv.conf",
     "logs": "Logs"
   },
   "update": {
@@ -128,7 +128,7 @@
     "playerBackend": "Player Backend",
     "exoPlayer": "ExoPlayer (Recommended)",
     "exoPlayerDescription": "Android native player with better hardware support",
-    "mpv": "MPV",
+    "mpv": "mpv",
     "mpvDescription": "Advanced player with more features and ASS subtitle support",
     "hardwareDecoding": "Hardware Decoding",
     "hardwareDecodingDescription": "Use hardware acceleration when available",
@@ -420,19 +420,10 @@
     "position": "Position"
   },
   "mpvConfig": {
-    "title": "MPV Configuration",
+    "title": "mpv.conf",
     "description": "Advanced video player settings",
-    "properties": "Properties",
     "presets": "Presets",
-    "noProperties": "No properties configured",
     "noPresets": "No saved presets",
-    "addProperty": "Add Property",
-    "editProperty": "Edit Property",
-    "deleteProperty": "Delete Property",
-    "propertyKey": "Property Key",
-    "propertyKeyHint": "e.g., hwdec, demuxer-max-bytes",
-    "propertyValue": "Property Value",
-    "propertyValueHint": "e.g., auto, 256000000",
     "saveAsPreset": "Save as Preset...",
     "presetName": "Preset Name",
     "presetNameHint": "Enter a name for this preset",
@@ -442,8 +433,7 @@
     "presetLoaded": "Preset loaded",
     "presetDeleted": "Preset deleted",
     "confirmDeletePreset": "Are you sure you want to delete this preset?",
-    "confirmDeleteProperty": "Are you sure you want to delete this property?",
-    "entriesCount": "${count} entries"
+    "configPlaceholder": "gpu-api=vulkan\nhwdec=auto\n# comment"
   },
   "dialog": {
     "confirmAction": "Confirm Action"