check for email verified on premium license upload

src/app/settings/premium.component.ts

@@ -61,6 +61,12 @@ export class PremiumComponent implements OnInit {
 
         try {
             if (this.selfHosted) {
+                if (!this.tokenService.getEmailVerified()) {
+                    this.toasterService.popAsync('error', this.i18nService.t('errorOccurred'),
+                        this.i18nService.t('verifyEmailFirst'));
+                    return;
+                }
+
                 const fd = new FormData();
                 fd.append('license', files[0]);
                 this.formPromise = this.apiService.postAccountLicense(fd).then(() => {

src/locales/en/messages.json

@@ -2106,6 +2106,9 @@
   "verifyEmailDesc": {
     "message": "Verify your account's email address to unlock access to all features."
   },
+  "verifyEmailFirst": {
+    "message": "Your account's email address first must be verified."
+  },
   "checkInboxForVerification": {
     "message": "Check your email inbox for a verification link."
   },