The opened document file is not in read-only status if clicking "View" button to show it

[v-ruizh]

OS: Windows 10
Build Version: 20241120.1
Regression: Not a Regression

Repro Steps:

1. Expand one MongoDB cluster in VS Code -> Single click the "Documents" node.
2. Select one document in the "Results" table -> Click "View" button.
   
3. Check whether the opened document file is in read-only status or not.

Expect:
The opened document file is in read-only status, like the one in NoSQL account.

Actual:
The opened document file is not in read-only status.

More Info:
The opened document file can be edited but the "Save" button is disabled forever.

[tnaum-ms]

Consider hiding buttons that stay disabled forever to reduce confusion.