build(android): add fdroid distribution flavor

android/app/src/fdroid/java/fivechan/android/MainActivity.java

@@ -0,0 +1,15 @@
+package fivechan.android;
+
+import android.os.Bundle;
+import com.capacitorjs.plugins.statusbar.StatusBarPlugin;
+import com.getcapacitor.BridgeActivity;
+
+public class MainActivity extends BridgeActivity {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        // Custom plugins must be registered before bridge initialization.
+        registerPlugin(FileUploaderPlugin.class);
+        registerPlugin(StatusBarPlugin.class);
+        super.onCreate(savedInstanceState);
+    }
+}

android/app/src/github/AndroidManifest.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+</manifest>

android/app/src/github/java/fivechan/android/MainActivity.java

@@ -1,8 +1,8 @@
 package fivechan.android;
 
 import android.os.Bundle;
-import com.getcapacitor.BridgeActivity;
 import com.capacitorjs.plugins.statusbar.StatusBarPlugin;
+import com.getcapacitor.BridgeActivity;
 
 public class MainActivity extends BridgeActivity {
     @Override

android/app/src/main/AndroidManifest.xml

@@ -2,7 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <application
         android:allowBackup="true"