Add space following question mark

dist/converse.js

@@ -56091,7 +56091,7 @@ _converse_headless_converse_core__WEBPACK_IMPORTED_MODULE_0__["default"].plugins
               api = _converse.api;
         ev.preventDefault();
 
-        if (confirm(__("Are you sure you want to generate new OMEMO keys?" + "This will remove your old keys and all previously encrypted messages will no longer be ecryptable on this device."))) {
+        if (confirm(__("Are you sure you want to generate new OMEMO keys? " + "This will remove your old keys and all previously encrypted messages will no longer be ecryptable on this device."))) {
           api.omemo.bundle.generate();
         }
       }

src/converse-omemo.js

@@ -129,7 +129,7 @@ converse.plugins.add('converse-omemo', {
                       { __, api } = _converse;
                 ev.preventDefault();
                 if (confirm(__(
-                    "Are you sure you want to generate new OMEMO keys?" +
+                    "Are you sure you want to generate new OMEMO keys? " +
                     "This will remove your old keys and all previously encrypted messages will no longer be ecryptable on this device.")
                 )) {
                     api.omemo.bundle.generate();