fix: prevent opening invalid links

Closes #328

src/app/modules/data/elements/external-link.component.ts

@@ -29,6 +29,7 @@ export class ExternalLinkComponent {
   constructor(private browser: Browser) {}
 
   onLinkClick(url: string) {
-    this.browser.open(url);
+    // make sure if the url is valid and then open it in the browser (prevent problem in iOS)
+    this.browser.open(new URL(url).href);
   }
 }

src/app/modules/data/types/message/message-detail-content.component.ts

@@ -38,6 +38,7 @@ export class MessageDetailContentComponent {
    * @param url Web address to open
    */
   onLinkClick(url: string) {
-    this.browser.open(url);
+    // make sure if the url is valid and then open it in the browser (prevent problem in iOS)
+    this.browser.open(new URL(url).href);
   }
 }