Hide buttons that either won't work or won't give user notification on failure

[bodom0015]

Problem

These functions currently have outstanding problems that will not be fixed for this release.

Fixes #409
Fixes #415

Approach

We should hide them from the Tale Workspaces UI for now, until they can be investigated and fixed.

How to Test

1. Checkout and run this branch locally
2. Login to the WholeTale Dashboard
3. Navigate to "Browse" and hover over a Tale to which you do not have access
   • You should not see the X button on Tale's to which you do not have write access (Delete enabled on public Tale #409)
4. Switch to Cards view and hover over the image (first column) of a Tale to which you do not have access
   • You should not see the X button on Tale's to which you do not have write access (Delete enabled on public Tale #409)
5. Launch a Tale to which you have access (if you haven't already)
6. Navigate to Run > Files > Tale Workspaces
7. Create a folder or file (if you haven't already)
8. Expand the dropdown next to the folder or file
   • You should not see options for "Copy to Home" or "Move To..." listed here (Hide "Move To..." / "Copy to Home" in Tale Workspaces view #415)
   • You should see only "Rename" and "Download" in the read-write case
   • You should see only "Download" in the read-only case