feat: implement an emoji keyboard

- add button to show emoji keyboard
- change database directory for debug builds

Signed-off-by: TheOneWithTheBraid <the-one@with-the-braid.cf>

lib/pages/chat/reactions_picker.dart

@@ -77,7 +77,8 @@ class ReactionsPicker extends StatelessWidget {
                   ),
                   child: const Icon(Icons.add_outlined),
                 ),
-                onTap: () => controller.pickEmojiAction(allReactionEvents))
+                onTap: () =>
+                    controller.pickEmojiReactionAction(allReactionEvents))
           ]);
         }),
       ),