feat: allow above-60Hz frame rates on iPhone

iOS caps third-party Metal apps at 60 Hz on iPhones unless
CADisableMinimumFrameDurationOnPhone is declared, so the in-game 120 FPS
setting had no effect on ProMotion displays.

Author: yorgunkral31

UnleashedRecomp/res/ios/iOSBundleInfo.plist.in

@@ -28,6 +28,8 @@
         <string>Unleashed Recompiled</string>
         <key>CFBundleIconName</key>
         <string>AppIcon</string>
+        <key>CADisableMinimumFrameDurationOnPhone</key>
+        <true/>
         <key>UIFileSharingEnabled</key>
         <true />
         <key>LSSupportsOpeningDocumentsInPlace</key>