Issue #3588188: Update sortable Views counter settings

Adds a Views config updater method that finds table displays with result counter fields and sets their stored table sortable setting to FALSE.

Runs that updater from a new Views post-update.

Adds test coverage for table displays with a result counter field, aliased result counter fields, non-counter sortable fields remaining unchanged, non-table style settings remaining unchanged, and the real update path via UpdatePathTestBase.

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Closes #3588188