misc: add new features requests

Change-Id: Ib6eb12f2793958e875773707f17003d4e0251a81

developer/feature-requests.md

@@ -51,6 +51,8 @@ the tickets.
   / medium difficulty & long term project)
 + Qt:
   + Add support for location sharing (contact #Jami - medium difficulty) (In progress)
+  + {client-qt-issue}`Add support for peer discovery<868>` (contact #Jami - easy)
+  + {client-qt-issue}`Add support for searching messages in conversations<869>` (contact #Jami - easy)
   + Emoji as a native component to avoid depending on qt-webengine
   for this (not available on macOS) (e.g. https://github.com/jnodev/QMLemoji)
   + Categorized conversations (like favorites, groups, etc) (to discuss with #Jami)