Moved My APIs from APIs page to main menu

[vinaytech]

Closes #3486

Changes

• Moved MyAPI's tab from APIs page navigation bar to main header menubar.

Developer checklist

This checklist is to be completed by the PR developer:

• Alternative solutions were compared/discussed before writing code
  • trade-offs with this solution are considered acceptable
• Code in this PR adheres to the project styleguide
• This pull request does not decrease project test coverage
• If the code changes existing database collection(s), migration has been written
• If UI texts are added or changed, all texts are internationalized

Reviewer checklist

Reviewed by: @matleppa

This list is to be completed by the pull request reviewer:

• Code works as described/expected
• Code seems to be error free
  • no browser console errors visible
  • no server console errors visible
  • passes CI build
• Code is written in a way that promotes maintainability
  • easy to understand
  • well organized
  • follows project coding standards and conventions
  • well documented

[matleppa]

@vinaytech
The problem here is that this PR now contains also same code, which was implemented in PR 3502, but without corrections done after review of that PR.

So let's make it this way:

1. remove from here all code which is not related to this PR.
2. make git rebase (so the corrected and merged functionality of PR 3502 is gotten from develop branch)

That way the PR contains only the new code which it is supposed to contain according to issue and there is no overlapping with other program code.

• PR title needs revision

[matleppa]

Works as expected.

[matleppa]

Corrected the title.