[Vue] Remove use of angularjs from SitesManager plugin #19390

Description:

Changes:

• Move siteWithoutTabs.twig content to new vue component.
• Replace simple directive use in some twig templates with vue-directive use.
• Introduce VueEntryContainer component for more convenient embedding of vue-entry from within other Vue components, primarily for compatibility w/ twig Template... events. (Note: Twig events like these should not be used this way in the future.)

Review

• [ ] Functional review done
• [ ] Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done
• [ ] Wording review done
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed

This issue is in "needs review" but there has been no activity for 7 days. ping @matomo-org/core-reviewers

This issue is in "needs review" but there has been no activity for 7 days. ping @matomo-org/core-reviewers