Fix typo from #1792 preventing filtering by tag

In #1792 I introduced a typo from `name` to `namer` and this prevented the tag
drawer from working properly. That is, when trying to filter by tag it was
looking for matches on `tag.data.namer` instead of on `tag.data.name` and
unsuprisingly there were no matches.

After this patch things are restored to normal working order.

lib/utils/filter-notes.ts

@@ -73,7 +73,7 @@ const makeMatchesTag = (tag: TagEntity, filter = '') => (note: NoteEntity) => {
     }
   }
 
-  const givenTag = tag ? [get(tag, 'data.namer', '')] : [];
+  const givenTag = tag ? [get(tag, 'data.name', '')] : [];
 
   const noteTags = get(note, 'data.tags', []);