Feature: new "report a bug" modal (#13530)

* WIP: report a bug api/ui

* fix lint

* add USER_USERNAME

* extend sendTxn tests / checks + fix bug report email

* fix lint

* add more checks to sendTxn - fix bug-report variables

* fix lint / ci

* fix test: reset email config url

* fix test stub

* fix tests

* refactor the variables checks

* lint.

* move bug-report page as a modal

* send user_email to the email

* show true/false instead 1/0

* fix issues

* fix footer report bug email if not logged in

* fix styles/margins

* prefill user's email

* show facebook email if local email not existing

* bugReportSuccessModal.vue

* add BROWSER_UA to mail properties

* extract bugReportLogic to its own lib file for unit test

* test api validators

* fix lint

website/server/controllers/api-v4/bug-report.js

@@ -0,0 +1,53 @@
+import { authWithHeaders } from '../../middlewares/auth';
+import { bugReportLogic } from '../../libs/bug-report';
+
+const api = {};
+
+/**
+ * @api {post} /api/v4/bug-report Report an issue
+ * @apiName BugReport
+ * @apiGroup BugReport
+ * @apiDescription This POST method is used to send bug reports from the Website.
+ * Since it needs the Users Data, it requires authentication.
+ *
+ * @apiParam (Body) {String} message Bug Report Message to sent
+ * @apiParam (Body) {String} email User Email
+ *
+ * @apiSuccess {Object} data Result of this bug report
+ * @apiSuccess {Boolean} data.ok Status of this report
+ * @apiSuccess {String} data.message Status of this report
+ *
+ * @apiError (400) {BadRequest} emptyReportBugMessage The report message is missing.
+ * @apiUse UserNotFound
+ */
+api.bugReport = {
+  method: 'POST',
+  url: '/bug-report',
+  middlewares: [authWithHeaders()],
+  async handler (req, res) {
+    req.checkBody('message', res.t('emptyReportBugMessage')).notEmpty();
+    req.checkBody('email', res.t('missingEmail')).notEmpty();
+    req.checkBody('email', res.t('notAnEmail')).isEmail();
+
+    const validationErrors = req.validationErrors();
+    if (validationErrors) throw validationErrors;
+
+    const { message, email } = req.body;
+    const { user } = res.locals;
+    const BROWSER_UA = req.get('User-Agent');
+
+    const {
+      emailData, sendMailResult,
+    } = bugReportLogic(
+      user, email, message, BROWSER_UA,
+    );
+
+    res.status(200).send({
+      ok: true,
+      emailData,
+      sendMailResult,
+    });
+  },
+};
+
+export default api;