Fix namespace filter to use keyword field for exact matching

[VijayabaskarR-06]

The namespace (publisher) filter used a term query on an analyzed field,
which caused partial matches (e.g. publisher:vscode matching ms-vscode).

This change switches the filter to the non-analyzed keyword field and
adds a regression test to ensure exact matching.

Fixes #1522

[netomi]

can you please sign the eca, see details here https://api.eclipse.org/git/eca/status/gh/eclipse/openvsx/1539.

Also could you work on a integration test to validate that the fix is working as expected?

[VijayabaskarR-06]

@netomi Thanks for the review!

I’ve signed the Eclipse Contributor Agreement; it should propagate shortly. Please let me know if it’s still not visible from your side.

Sure, I can work on an integration test to validate that the namespace filter only matches exact publishers (e.g. publisher:vscode does not match ms-vscode). I’ll add this to the current PR.

[VijayabaskarR-06]

Thanks for the note! I’ve now signed the ECA and added an integration test that verifies the namespace filter only matches exact values (e.g. vscode does not match ms-vscode) and also mentioned the clear working of the code . Please let me know if you’d like the test adjusted.

[netomi]

the test is in the actual main source path and it is missing basically any import.

so I wonder how this PR was generated.

[VijayabaskarR-06]

@netomi Thanks for pointing this out — you’re right.

I thought the imports were automatically held in the test, but the test was mistakenly added under the main source path. I’ll move it to
server/src/test/java and ensure all required imports are explicitly included.
I’ll push an updated commit shortly.

[VijayabaskarR-06]

I observed that application.html.erb was loading the application stylesheet twice. As a result, there were needless duplicate CSS requests. The fix eliminates the unnecessary inclusion, guaranteeing that styles load only once and maintaining a tidy and effective layout.