ui: add warning for domain_role

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "3.4.30",
+    "version": "3.4.31",
     "bin": "bin/hydrooj.js",
     "main": "src/loader",
     "module": "src/loader",

packages/hydrooj/src/handler/domain.ts

@@ -231,7 +231,7 @@ class DomainJoinApplicationsHandler extends ManageHandler {
     async get() {
         const r = await domain.getRoles(this.domain);
         const roles = r.map((role) => role._id).sort();
-        this.response.body.rolesWithText = roles.map((role) => [role, role]);
+        this.response.body.rolesWithText = roles.filter((i) => !['default', 'guest'].includes(i)).map((role) => [role, role]);
         this.response.body.joinSettings = domain.getJoinSettings(this.domain, roles);
         this.response.body.expirations = { ...domain.JOIN_EXPIRATION_RANGE };
         if (!this.response.body.joinSettings) {