set cssClass and other note related classes on the root widget instead, fixes #1799

src/public/app/widgets/containers/scrolling_container.js

@@ -0,0 +1,16 @@
+import Container from "./container.js";
+
+export default class ScrollingContainer extends Container {
+    constructor() {
+        super();
+
+        this.css('height: 100%; overflow: auto;');
+    }
+
+    async tabNoteSwitchedEvent({tabContext, notePath}) {
+        // if notePath does not match then the tabContext has been switched to another note in the mean time
+        if (tabContext.notePath === notePath) {
+            this.$widget.scrollTop(0);
+        }
+    }
+}