Fix soft-crash on bad permalinks

Fixes https://github.com/vector-im/riot-web/issues/12880

src/linkify-matrix.js

@@ -200,6 +200,7 @@ matrixLinkify.options = {
         switch (type) {
             case "url": {
                 // intercept local permalinks to users and show them like userids (in userinfo of current room)
+                try {
                     const permalink = parsePermalink(href);
                     if (permalink && permalink.userId) {
                         return {
@@ -208,6 +209,9 @@ matrixLinkify.options = {
                             },
                         };
                     }
+                } catch (e) {
+                    // OK fine, it's not actually a permalink
+                }
                 break;
             }
             case "userid":