moving developer-only strings to api/common messages (#10258)

* move translatable string to apiMessages

* use apiMessages instead of res.t for groupIdRequired / keepOrRemove

* move pageMustBeNumber to apiMessages

* change apimessages

* move missingKeyParam to apiMessages

* move more strings to apiMessages

* fix lint

* revert lodash imports to fix tests

* fix webhook test

* fix test

* rollback key change of `keepOrRemove`

* remove unneeded `req.language` param

*  extract more messages from i18n

* add missing `missingTypeParam` message

* Split api- and commonMessages

* fix test

* fix sanity

* merge messages to an object, rename commonMessage to errorMessage

* apiMessages -> apiError, commonMessages -> errorMessage, extract messages to separate objects

* fix test

* module.exports

test/api/v3/integration/quests/POST-groups_groupId_quests_invite.test.js

@@ -6,6 +6,7 @@ import {
 import { v4 as generateUUID } from 'uuid';
 import { quests as questScrolls } from '../../../../../website/common/script/content';
 import { model as Chat } from '../../../../../website/server/models/chat';
+import apiError from '../../../../../website/server/libs/apiError';
 
 describe('POST /groups/:groupId/quests/invite/:questKey', () => {
   let questingGroup;
@@ -69,7 +70,7 @@ describe('POST /groups/:groupId/quests/invite/:questKey', () => {
       await expect(leader.post(`/groups/${questingGroup._id}/quests/invite/${FAKE_QUEST}`)).to.eventually.be.rejected.and.eql({
         code: 404,
         error: 'NotFound',
-        message: t('questNotFound', {key: FAKE_QUEST}),
+        message: apiError('questNotFound', {key: FAKE_QUEST}),
       });
     });