Add "manage accounts" item to settings

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

@@ -645,6 +645,7 @@
 	<string name="no_followed_hashtags_subtitle">Follows will appear here</string>
 	<string name="no_lists_title">Organize your home feed with Lists</string>
 	<string name="no_lists_subtitle">Yours will appear here</string>
+	<string name="manage_accounts">Manage accounts</string>
 	<plurals name="x_posts_recently">
 		<item quantity="one">%,d post recently</item>
 		<item quantity="other">%,d posts recently</item>