Make hyperlinks clickable in markdown previews

Resolves: #5030

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

src/main/java/com/owncloud/android/ui/preview/PreviewTextFragment.java

@@ -53,9 +53,12 @@ import javax.inject.Inject;
 import androidx.annotation.NonNull;
 import androidx.appcompat.widget.SearchView;
 import io.noties.markwon.AbstractMarkwonPlugin;
+import io.noties.markwon.LinkResolver;
+import io.noties.markwon.LinkResolverDef;
 import io.noties.markwon.Markwon;
 import io.noties.markwon.MarkwonConfiguration;
 import io.noties.markwon.core.MarkwonTheme;
+import io.noties.markwon.core.spans.LinkSpan;
 import io.noties.markwon.ext.strikethrough.StrikethroughPlugin;
 import io.noties.markwon.ext.tables.TablePlugin;
 import io.noties.markwon.ext.tasklist.TaskListDrawable;