[Glitch] Only suggest discoverable accounts in collection account editor

Port 39ff07bc89 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/models/account.ts

@@ -69,6 +69,11 @@ export const accountDefaultValues: AccountShape = {
   display_name: '',
   display_name_html: '',
   emojis: ImmutableList<CustomEmoji>(),
+  feature_approval: {
+    automatic: [],
+    manual: [],
+    current_user: 'missing',
+  },
   fields: ImmutableList<AccountField>(),
   group: false,
   header: '',