Reorganize preferences page (#5161)

config/locales/simple_form.en.yml

@@ -4,6 +4,7 @@ en:
     hints:
       defaults:
         avatar: PNG, GIF or JPG. At most 2MB. Will be downscaled to 120x120px
+        digest: Sent after a long period of inactivity with a summary of mentions you've received in your absence
         display_name:
           one: <span class="name-counter">1</span> character left
           other: <span class="name-counter">%{count}</span> characters left
@@ -19,7 +20,7 @@ en:
       sessions:
         otp: Enter the Two-factor code from your phone or use one of your recovery codes.
       user:
-        filtered_languages: Selected languages will be removed from your public timelines.
+        filtered_languages: Checked languages will be filtered from public timelines for you
     labels:
       defaults:
         avatar: Avatar
@@ -44,7 +45,7 @@ en:
         setting_delete_modal: Show confirmation dialog before deleting a toot
         setting_noindex: Opt-out of search engine indexing
         setting_system_font_ui: Use system's default font
-        setting_theme: Site theme 
+        setting_theme: Site theme
         setting_unfollow_modal: Show confirmation dialog before unfollowing someone
         severity: Severity
         type: Import type