Issue #3611235: Polish the requester "My requests" page (Content-menu link, action-button styling, return-to-page)
Follow-up to #3611212. On the requester My requests page:
- Adds a My Orchestra requests menu link under the Content admin menu, beside Orchestra tasks and My Orchestra actions, gated by the View own process instances permission.
- Styles the requester's card action as a real button, scoped under the card so it wins over a theme's own
.buttonrules (which left it unstyled and black-on-hover). - Threads the page as the return target onto that action link, so completing an assigned step from here returns to the list rather than chaining to the workflow's next step.
- Removes stray
version:lines from the module's libraries file.
Only assigned (work item) steps are surfaced; an unassigned modify-by-link interaction step (an emailed bearer link) is intentionally not shown here, pending a stored recipient identity to match the current user, left to a separate issue.
Kernel tests cover the menu link and the return threading; docs and French translations updated.
Fixes #3611235.