lengthen the error timeout when the message may be complicated, eg. with details from the server

src/views/ContactsView.vue

@@ -617,7 +617,7 @@ export default class ContactsView extends Vue {
             title: "Error with Invite",
             text: message,
           },
-          5000,
+          -1,
         );
       }
       // if we're here, they haven't redirected anywhere, so we'll redirect here without a query parameter
@@ -1122,7 +1122,7 @@ export default class ContactsView extends Vue {
               (regResult.error as string) ||
               "Something went wrong during registration.",
           },
-          5000,
+          -1,
         );
       }
     } catch (error) {
@@ -1156,7 +1156,7 @@ export default class ContactsView extends Vue {
           title: "Registration Error",
           text: userMessage,
         },
-        5000,
+        -1,
       );
     }
   }