Description:
Policy to prevent users from adding website shortcuts to the shelf on Chrome OS

## Use case ##
["What" are they looking for a solution to? You need to be specific. Please don't just propose a feature but explain
what problem the proposed feature is meant to solve. How would a
user/admin make use of the feature? Focus on the action/process the they
want to perform.]
-By preventing users from adding website shortcuts to the apps launcher, the admin will have more granular control over the workspace of the user, providing flexibility to block/allow any setting available to the user based on school requirements.


## Motivation ##
["Why" does the use case exist? It's important to make sure the motivation behind the FR is a real
problem. Do they have business/legal/etc. reasons that motivate this
feature request? Good motivations are indicative of things that might
affect other customers.]

-Users are adding shortcuts to the apps launcher and naming them with unappropiate words. This is the only setting within "Settings Menu > More Tools" that we cannot currently block via policy.

## Existing workarounds ##
[Note any workarounds that are available in the product today.]
-No workarounds available.