Modernize web package and rename to permission_handler_html (#1226)

* Rename to `permission_handler_html`

* Change description example `pubspec.yaml`

Author: JeroenWeener

permission_handler_web/.metadata renamed to permission_handler_html/.metadata

@@ -1,6 +1,6 @@
-# permission_handler_web
+# permission_handler_html
 
-[![pub package](https://img.shields.io/pub/v/permission_handler_web.svg)](https://pub.dartlang.org/packages/permission_handler_web) ![Build status](https://github.com/Baseflow/flutter-permission-handler/workflows/permission_handler_web/badge.svg?branch=master) [![style: flutter lints](https://img.shields.io/badge/style-flutter_lints-40c4ff.svg)](https://pub.dev/packages/flutter_lints)
+[![pub package](https://img.shields.io/pub/v/permission_handler_html.svg)](https://pub.dartlang.org/packages/permission_handler_html) ![Build status](https://github.com/Baseflow/flutter-permission-handler/workflows/permission_handler_html/badge.svg?branch=master) [![style: flutter lints](https://img.shields.io/badge/style-flutter_lints-40c4ff.svg)](https://pub.dev/packages/flutter_lints)
 
 The official web implementation of the [permission_handler](https://pub.dev/packages/permission_handler) plugin by [Baseflow](https://baseflow.com).
 

permission_handler_web/CHANGELOG.md renamed to permission_handler_html/CHANGELOG.md

@@ -0,0 +1,29 @@
+name: permission_handler_html_example
+description: Demonstrates how to use the permission_handler_html plugin.
+
+environment:
+  sdk: ">=3.0.5 <4.0.0"
+
+dependencies:
+  baseflow_plugin_template: ^2.1.2
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  integration_test:
+    sdk: flutter
+  flutter_test:
+    sdk: flutter
+
+  permission_handler_html:
+    # When depending on this package from a real application you should use:
+    #   permission_handler_web: ^x.y.z
+    # See https://dart.dev/tools/pub/dependencies#version-constraints
+    # The example app is bundled with the plugin so we use a path dependency on
+    # the parent directory to use the current plugin's version.
+    path: ../
+
+  url_launcher: ^6.0.12
+
+flutter:
+  uses-material-design: true