All tables in JMeter Test Element GUIs should allow Multiple Selection and multiple removal

@pmouawad ([Bug 59155](https://bz.apache.org/bugzilla//show_bug.cgi?id=59155&redirect=false)):
Concerned elements:
- CookieManager
- Header Manager
- HTTP Authorization Manager
- DNS Cache Manager
- User Parameters
- Response Assertion

OS: All

Locate the GUI implementations for CookieManager, Header Manager, HTTP Authorization Manager, DNS Cache Manager, User Parameters, and Response Assertion. Compare how each table handles selection and removal, then verify that each supports selecting multiple rows and removing them together across the affected test element GUIs.

Written by the indexing model from the issue text.