Add room details dialog

Fixes #20

lib/widgets/linkified_text.dart

@@ -0,0 +1,23 @@
+import "package:flutter/material.dart";
+import "package:flutter_linkify/flutter_linkify.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/helpers/launch_helper.dart";
+
+class LinkifiedText extends ConsumerWidget {
+  final String text;
+  final int? maxLines;
+  final TextStyle? style;
+  const LinkifiedText(this.text, {this.maxLines, this.style, super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) => Linkify(
+    text: text,
+    maxLines: maxLines,
+    style: style,
+    options: LinkifyOptions(humanize: false),
+    onOpen: (link) =>
+        ref.watch(LaunchHelper.provider).launchUrl(Uri.parse(link.url)),
+    linkStyle: TextStyle(color: Theme.of(context).colorScheme.primary),
+    overflow: maxLines == null ? null : TextOverflow.ellipsis,
+  );
+}