fix: remove url markdown on messages

This Closes #221

lib/pages/chat/events/message_content.dart

@@ -192,7 +192,8 @@ class MessageContent extends StatelessWidget {
             if (AppConfig.renderHtml &&
                 !event.redacted &&
                 event.isRichMessage) {
-              var html = event.formattedText;
+              var html = event.formattedText.unMarkdownLinks(event.text);
+
               if (event.messageType == MessageTypes.Emote) {
                 html = '* $html';
               }

lib/utils/string_extension.dart

@@ -89,4 +89,34 @@ extension StringCasingExtension on String {
     final String? firstValidLink = matches.firstWhere((link) => AnyLinkPreview.isValidLink(link!));
     return firstValidLink;
   }
+
+  // Removes markdowned links from a string based on the unformatted text
+  // Workaround for content['formatted_body'] which formats urls in a way that makes them unusable
+  String unMarkdownLinks(String unformattedText) {
+    final RegExp regex = RegExp(r'https:\/\/[^\s]+');
+
+    final Iterable<Match> formattedLinksMatches = regex.allMatches(this);
+    final Iterable<Match> unformattedLinksMatches = regex.allMatches(unformattedText);
+
+    if (formattedLinksMatches.isEmpty ||
+        unformattedLinksMatches.isEmpty ||
+        formattedLinksMatches.length != unformattedLinksMatches.length) {
+      return this;
+    }
+
+    var unMarkdownedText = this;
+
+    // Replace respectively all formatted links with unformatted links
+    for (int i = 0; i < formattedLinksMatches.length; i++) {
+      final Match formattedLinkMatch = formattedLinksMatches.elementAt(i);
+      final Match unformattedLinkMatch = unformattedLinksMatches.elementAt(i);
+
+      final String formattedLink = formattedLinkMatch.group(0)!;
+      final String unformattedLink = unformattedLinkMatch.group(0)!;
+
+      unMarkdownedText = unMarkdownedText.replaceFirst(formattedLink, unformattedLink);
+    }
+
+    return unMarkdownedText;
+  }
 }