chore(app/share): add workaround for dead code eliminination by webpack

since fetchNote function is not used anywhere, webpack will treat it as "dead code" and remove it from the final output

I did not have any success with using webpack config flags like "sideEffects", so I've reverted to this workaround for now

src/public/app/share.ts

@@ -25,3 +25,9 @@ document.addEventListener(
     },
     false
 );
+
+// workaround to prevent webpack from removing "fetchNote" as dead code:
+// add fetchNote as property to the window object
+Object.defineProperty(window, "fetchNote", {
+    value: fetchNote
+});