Fix props name casing in time time tracker vue component

What does this MR do?

This MR changes the property naming in time tracker vue component to meet eslint rules.

adapted and tested:

• fix naming props to meet eslint rules
• adapt all callsites
• quick actions proper update the estimates
• Milestone Panel and Issue panel show proper values
• karma tests

Please tell me if I am missing something here :)

What are the relevant issue numbers?

Closes #51699 (closed)
Closes #45977 (closed)
Follow up of MR !21825 (merged)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides