Add an acknowledgement page in settings.

app/src/main/res/layout/fragment_acknowledgement.xml

@@ -0,0 +1,6 @@
+<androidx.recyclerview.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:id="@+id/recycler_view_acknowledgement_fragment"
+    tools:context="Settings.AcknowledgementFragment"/>

app/src/main/res/layout/item_acknowledgement.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="16dp"
+    android:clickable="true"
+    android:focusable="true"
+    android:background="?attr/selectableItemBackground">
+
+    <TextView
+        android:id="@+id/name_text_view_item_acknowledgement"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/primaryTextColor"
+        android:textSize="16sp" />
+
+    <TextView
+        android:id="@+id/introduction_text_view_item_acknowledgement"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="8dp" />
+
+</LinearLayout>

app/src/main/res/values/strings.xml

@@ -146,6 +146,7 @@
     <string name="select_from_gallery">Select a picture</string>
     <string name="select_again">Select again</string>
     <string name="error_getting_image">Error getting the image</string>
+    <string name="error_getting_video">Error getting the video</string>
     <string name="no_camera_available">No camera app available</string>
     <string name="error_creating_temp_file">Error creating temp file</string>
 
@@ -258,6 +259,7 @@
     <string name="settings_theme_dark_theme_summary">Dark Theme</string>
     <string name="settings_theme_system_default_summary">Device default</string>
     <string name="settings_enable_nsfw_title">Enable NSFW</string>
+    <string name="settings_acknowledgement_master_title">Acknowledgement</string>
 
     <string name="no_link_available">Cannot get the link</string>
 </resources>

app/src/main/res/xml/main_preferences.xml

@@ -21,4 +21,9 @@
         app:key="nsfw"
         app:title="@string/settings_enable_nsfw_title"/>
 
+    <Preference
+        app:key="acknowledgement_master"
+        app:title="@string/settings_acknowledgement_master_title"
+        app:fragment="Settings.AcknowledgementFragment" />
+
 </androidx.preference.PreferenceScreen>