865: Auto update from spinbox change

[DolicaAkelloEgwel]

Issue

Closes #865

Description

Makes the spin box update methods trigger during valueChanged rather than editingFinished. Also moved the disabling/enabling of the preview index spin box to the view as I feel like it belongs there rather than in the presenter.

Testing

None. There currently aren't any tests for the files I added code to.

Acceptance Criteria

Change the spinbox values for the operations and check that the preview updates, and the value only increases once.

Documentation

Changed the release notes.

[samtygier-stfc]

Solves the original problem, but makes it much hard to change the value by typing in a new one.

For example if you open the rebin filter, select the factor box and try to type 0.6. As soon as I press 0, the value changes to 0.00, if I put the cursor after the decimal places and type 6 nothing happens, I guess because there is a limit on the number of positions allowed.

Is it possible to trigger the on_change without resetting it to #,##?

Or if not could a timer be used. So valueChanged starts a 1 second timer, any additional change resets the timer to 1 second, and when the timer finishes it calls _on_change_and_disable.

[samtygier-stfc]

Thanks. Works nicely now.