Fix invalid date format

[asteriscos]

Description

This PR fixes a few redundant date formats. This was caused by some components trying to format dates already formatted.

It also improves the validation of the date parameter in the formatUIDate service.

Important

The issue can only be replicated in Firefox. Nevertheless, it should be tested in all browsers with a real manager.

Issues Resolved

Closes #6207 #6212 #6220

Evidence

Test

• Go to About page and check the date renders properly
• Register an agent in a Wazuh server
• Go to Endpoints Summart and check the date values are rendered properly
• Select an agent in the table and verify Registration date and Last keep alive values render a valid date

Check List

• All tests pass
• Update CHANGELOG.md
• Commits are signed per the DCO using --signoff

[github-actions]

Wazuh Core plugin code coverage (Jest) test	%	values
Statements	21.42%	( 186 / 868 )
Branches	17.99%	( 79 / 439 )
Functions	14.22%	( 36 / 253 )
Lines	21.65%	( 183 / 845 )

[github-actions]

Wazuh Check Updates plugin code coverage (Jest) test	%	values
Statements	76.68%	( 171 / 223 )
Branches	57.57%	( 57 / 99 )
Functions	61.7%	( 29 / 47 )
Lines	76.68%	( 171 / 223 )

[github-actions]

Main plugin code coverage (Jest) test	%	values
Statements	12.08%	( 4159 / 34427 )
Branches	8.17%	( 1889 / 23116 )
Functions	11.53%	( 943 / 8175 )
Lines	12.25%	( 4046 / 33018 )

[Tostti]

Test	Chrome	Firefox	Safari	Brave	Edge
Verify render in about page	🟢	🟢	🟢	🟢	🟢
Verify render in agents page	🟢	🟢	🟢	🟢	🟢

Firefox

Chrome

Safari

Brave

Edge

Test ✅
CR ✅

LGTM

[Machi3mfl]

Test	Chrome	Firefox	Safari	Brave	Edge
Verify render in about page	🟢	🟢	🟢	⚫	⚫
Verify render in agents page	🟢	🟢	🟢	⚫	⚫

Firefox

Chrome

Safari