feat: add target filter query view

[MikaMauger]

This MR introduces the Target Filter Queries view, aligned with the previous Hawkbit UI.
Creation is not included yet, as target filter queries can already be created from the Targets view.

Currently, you can:

• list target filter queries
• automatically assign a distribution set to a filter
• unassign a distribution set
• delete a single filter query
• bulk delete multiple filter queries

[hawkbit-bot]

Thanks @MikaMauger for taking the time to contribute to hawkBit! We really appreciate this. Make yourself comfortable while I'm looking for a committer to help you with your contribution.
Please make sure you read the contribution guide and signed the Eclipse Contributor Agreement (ECA).

[avgustinmm]

@MikaMauger ,
I don't mind the double brackets the SonarCloud fail for - we could accept it.
But if you don't resolve eclipsefdn/eca compliance issue - we could not accept the PR. While this issue is present, we won't start any review.

[MikaMauger]

Done! Also, the double brackets are from copied and pasted existing code. I can remove them, but I'll wait for the full review before doing so.

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[MikaMauger]

OK, I have taken your comments into account, so I changed a little bit the table to be able to see the query (with ellipsis and a tooltip):

I also added the details panel:

What do you think?

PS: The creation flow will require additional work. A small modal with only the required fields wouldn’t be sufficient; we also need a way to display and review the actual query results. Since we already have it in the "Targets" view, I think this could be addressed in a separate PR.

[strailov]

Looks good! Thanks @MikaMauger for your contribution!