add loginWithWebview, mixed explore page, app links, html node api;

improve ui

lib/utils/app_links.dart

@@ -0,0 +1,30 @@
+import 'package:app_links/app_links.dart';
+import 'package:venera/foundation/app.dart';
+import 'package:venera/foundation/comic_source/comic_source.dart';
+import 'package:venera/pages/comic_page.dart';
+
+void handleLinks() {
+  final appLinks = AppLinks();
+  appLinks.uriLinkStream.listen((uri) {
+    handleAppLink(uri);
+  });
+}
+
+void handleAppLink(Uri uri) async {
+  for(var source in ComicSource.all()) {
+    if(source.linkHandler != null) {
+      if(source.linkHandler!.domains.contains(uri.host)) {
+        var id = source.linkHandler!.linkToId(uri.toString());
+        if(id != null) {
+          if(App.mainNavigatorKey == null) {
+            await Future.delayed(const Duration(milliseconds: 200));
+          }
+          App.mainNavigatorKey!.currentContext?.to(() {
+            return ComicPage(id: id, sourceKey: source.key);
+          });
+        }
+        return;
+      }
+    }
+  }
+}