feat: frontend member management

- Leden pagina met VDataTable, rol chips, uitnodigingen sectie
- InviteMemberDialog + EditMemberRoleDialog
- Publieke acceptatiepagina /invitations/[token]
- Router guard uitgebreid met requiresAuth: false support
- MemberCollection backend uitgebreid met volledige pending_invitations lijst

apps/app/src/navigation/vertical/index.ts

@@ -17,4 +17,11 @@ export default [
     to: { name: "organisation" },
     icon: { icon: "tabler-building" },
   },
+  {
+    title: "Leden",
+    to: { name: "organisation-members" },
+    icon: { icon: "tabler-users-group" },
+    action: "read",
+    subject: "members",
+  },
 ];