fix(deps): update dependency @material/web to v1

This CL also fixes many things necessary for the update.

It also changes the entire md3 theme, since there have been a lot of
breaking changes and this is the easiest way to have a working theme
again (it is also an improvement).

Change-Id: I4a412e0c0ca4345084c724fcaba000293521e907
diff --git a/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js b/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js
index 6a35b10..73a4cc1 100644
--- a/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js
+++ b/src/contentScripts/communityConsole/flattenThreads/components/ReplyButton.js
@@ -32,10 +32,10 @@
   render() {
     return html`
       <md-outlined-button
-          label="${msg('Reply', {
-      desc: 'Button which is used to open the reply box.',
-    })}"
           @click=${this.openReplyEditor}>
+        ${msg('Reply', {
+      desc: 'Button which is used to open the reply box.',
+    })}
       </md-outlined-button>
     `;
   }