improve default post privacy to work like web mastodon, add default post privacy option

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

@@ -16,4 +16,10 @@
         <item>60</item>
         <item>120</item>
     </string-array>
+
+    <string-array name="post_privacy_values" inputType="integer">
+        <item>public</item>
+        <item>unlisted</item>
+        <item>private</item>
+    </string-array>
 </resources>

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

@@ -107,7 +107,7 @@
     <string name="download_image">Downloading %1$s</string>
 
     <string name="action_copy_link">Copy the link</string>
-  
+
     <string name="send_status_link_to">Share toot URL to…</string>
     <string name="send_status_content_to">Share toot to…</string>
 
@@ -146,7 +146,6 @@
     <string name="dialog_download_image">Download</string>
     <string name="dialog_message_follow_request">Follow request pending: awaiting their response</string>
     <string name="dialog_unfollow_warning">Unfollow this account?</string>
-    <string name="dialog_reply_not_found">Couldn\'t post this status. The status you\'re replying to might not be available. Remove reply info?</string>
 
     <string name="visibility_public">Public: Post to public timelines</string>
     <string name="visibility_unlisted">Unlisted: Do not show in public timelines</string>
@@ -187,6 +186,15 @@
         <item>2 hours</item>
     </string-array>
 
+    <string name="pref_default_post_privacy">Default post privacy</string>
+    <string name="pref_publishing">Publishing</string>
+
+    <string-array name="post_privacy_names" inputType="integer">
+        <item>Public</item>
+        <item>Unlisted</item>
+        <item>Followers-only</item>
+    </string-array>
+
     <string name="notification_channel_mention_name">New Mentions</string>
     <string name="notification_channel_mention_descriptions">Notifications about new mentions</string>
     <string name="notification_channel_follow_name">New Followers</string>
@@ -250,4 +258,5 @@
     <string name="replying_to">Replying to @%s</string>
     <string name="load_more_placeholder_text">load more</string>
 
+
 </resources>

app/src/main/res/xml/preferences.xml

@@ -25,6 +25,17 @@
             android:title="@string/pref_title_alway_show_sensitive_media" />
 
     </PreferenceCategory>
+
+    <PreferenceCategory android:title="@string/pref_publishing">
+        <ListPreference
+            android:defaultValue="public"
+            android:entries="@array/post_privacy_names"
+            android:entryValues="@array/post_privacy_values"
+            android:key="defaultPostPrivacy"
+            android:summary="%s"
+            android:title="@string/pref_default_post_privacy" />
+    </PreferenceCategory>
+
     <PreferenceCategory android:title="@string/pref_title_browser_settings">
         <CheckBoxPreference
             android:defaultValue="false"