There is no validation error for the document file in MongoDB cluster

[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. Click "+" button in "Results" page -> Edit the document file with invalid characters.
3. Check whether there is validation error for the document file in MongoDB cluster.

Expect:
There is validation error for the document file in MongoDB cluster.

Actual:
There is no validation error for the document file in MongoDB cluster.

More Info:

1. Click "Save" button, the document file keeps saving status without any error.
2. The "Validate" button keeps disabled status forever.