[24.1] Fix pinia in manually mounted components

[davelopez]

Follow-up to #18299

It took me a while to figure it out, but the History Watcher stopped working whenever we were mounting a component this way. Turns out it was the store being wiped out 😅

Should fix the Selenium tests related to the tour generator currently broken:

FAILED lib/galaxy_test/selenium/test_tool_describing_tours.py::TestToolDescribingTours::test_generate_tour_with_data - selenium.common.exceptions.TimeoutException: Message: Failed waiting on history item 2 to become visible, visible datasets include [#dataset-dbc82ad822aa4805]. Timeout waiting on CSS selector [.history-index .content-item[data-hid="2"]] to become visible.

FAILED lib/galaxy_test/selenium/test_tool_describing_tours.py::TestToolDescribingTours::test_generate_tour_no_data - selenium.common.exceptions.TimeoutException: Message: Failed waiting on history item 1 to become visible, visible datasets include []. Timeout waiting on CSS selector [.history-index .content-item[data-hid="1"]] to become visible.

It also fixes a type error when ending the tour:

t.end is not a function
TypeError: t.end is not a function
    at HTMLButtonElement.<anonymous> (<anonymous>:340:1788)
    at HTMLButtonElement.dispatch (webpack://@galaxyproject/galaxy-client/./src/libs/jquery/jquery.js?:4737:27)
    at $event.dispatch (webpack://@galaxyproject/galaxy-client/./src/libs/jquery/jquery.event.drag.js?./node_modules/imports-loader/dist/cjs.js?imports=default%7CjqueryVendor%7CjQuery:386:19)
    at $event.dispatch (webpack://@galaxyproject/galaxy-client/./src/libs/jquery/jquery.event.drag.js?:381:19)
    at elemData.handle (webpack://@galaxyproject/galaxy-client/./src/libs/jquery/jquery.js?:4549:28)

How to test the changes?

(Select all options that apply)

• I've included appropriate automated tests.
• This is a refactoring of components with existing test coverage.
• Instructions for manual testing are as follows:
  1. [add testing steps and prerequisites here if you didn't write automated tests covering all your changes]

License

• I agree to license these and all my past contributions to the core galaxy codebase under the MIT license.