Iterate design on Settings screen (#1763)

* Iterate design on Settings screen:

- Set new icons provided by design.
- Replace `PreferenceText` usages with `ListItem`.
- Add missing icons, and a new way to group them for previews.

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

libraries/ui-strings/src/main/res/values/localazy.xml

@@ -172,8 +172,10 @@
   <string name="common_voice_message">"Voice message"</string>
   <string name="common_waiting">"Waiting…"</string>
   <string name="common_waiting_for_decryption_key">"Waiting for this message"</string>
+  <string name="common_report_a_problem">"Report a problem"</string>
   <string name="common_poll_end_confirmation">"Are you sure you want to end this poll?"</string>
   <string name="common_poll_summary">"Poll: %1$s"</string>
+  <string name="common_verify_device">"Verify device"</string>
   <string name="dialog_title_confirmation">"Confirmation"</string>
   <string name="dialog_title_warning">"Warning"</string>
   <string name="emoji_picker_category_activity">"Activities"</string>