Hide from launcher and fix status bar overlap

The settings screen doesn't need its own launcher icon — LSPosed Manager
already provides the entry point for opening a module's settings, via
PackageManager.getLaunchIntentForPackage(), which resolves CATEGORY_INFO
before falling back to CATEGORY_LAUNCHER. Switching to INFO keeps it
launchable that way while dropping it from the home-screen app drawer.

Also: targeting SDK 35 enforces edge-to-edge by default, and the screen
never handled system-bar insets, so content drew straight under the status
bar. fitsSystemWindows on the content root fixes the overlap.

Co-Authored-By: agent <agent@bdeshi.space>

app/src/main/AndroidManifest.xml

@@ -25,7 +25,7 @@
             android:theme="@style/Theme.Veil">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.INFO" />
             </intent-filter>
         </activity>