Add Game Mode support with LSSupportsGameMode

- Added LSSupportsGameMode=true to both iOS and tvOS Info.plist files
- LSSupportsGameMode is supported on iOS 18.6+/iPadOS 18.6+/macOS 26.0+
- GCSupportsGameMode key is marked as deprecated, so I haven't added it

Limelight/Limelight-Info.plist

@@ -35,6 +35,8 @@
 	</array>
 	<key>GCSupportsControllerUserInteraction</key>
 	<true/>
+	<key>LSSupportsGameMode</key>
+	<true/>
 	<key>ITSAppUsesNonExemptEncryption</key>
 	<false/>
 	<key>LSApplicationCategoryType</key>

Moonlight TV/Info.plist

@@ -54,6 +54,8 @@
 	<array>
 		<string>arm64</string>
 	</array>
+	<key>LSSupportsGameMode</key>
+	<true/>
 	<key>UIUserInterfaceStyle</key>
 	<string>Dark</string>
 </dict>