Protected containers: Refactor test and components related to protection rules in project setting ui

After implementing all MR related to the issue #441345 (closed), some refactoring and improvement possibilities have been identified:

• !146623 (comment 1930183069)
• !146623 (comment 1930183098)
• !146623 (comment 1938244469)

Note: Thanks to @ekigbo for his suggestions.

Proposal