Rearrange vulnerability and status filters

What does this MR do and why?

Describe in detail what your merge request does and why.

This MR resolves 394206

Done is scope of this MR:

1. Rearranged layout of security scan type
2. vulnerability states and severity states added as separate filtering state
3. Added filter selector
4. Updated sentence

Note

Design specifies more filters But for now only existing in this MR set of filters is supported by backend

Feature workflow

Title	Issue	MR
Base component	Related issue	115732
Rearrange layout	Related issue	TBD
New criteria selector	Related issue	TBD
Adding filters	👈 This one	TBD
Migrate protected branches selector	Related issue	MR

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

NEW POLICY	EXISTING POLICY
new_state	existing

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

1. Go to Security & Complience -> Policies -> New policy -> Scan Result Policy (security/policies/new?type=scan_execution_policy)
2. Or edit existing policy
3. Go to Rules section and select Security scan

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #398160 (closed)