List of Analyses Services is not properly filtered by state

[xispa]

Description of the issue/feature this PR addresses

Analyses Services are not properly filtered when filtering by "Dormant" or "All". The reason was that the logic that is responsible of rendering the items (through ajax call) when a category is expanded was not taking into account the review_state condition set to the current view, so it was always returning the items with inactive_state=active.

Linked issue: List of Analyses Services is not properly filtered by state #510

A part from the above, the action buttons (for 'standard' transitions, in this case: "Activate" and "Deactivate") were not rendered at the bottom of the list. The reason was the category_expand_handler js event (that is responsible of requesting the items to be rendered under the expanded category via ajax call) was not calling load_transitions().

Current behavior before PR

List of Analyses Services is not filtered by state and action buttons are not rendered at the bottom of the list when selecting an Analysis Service.

Desired behavior after PR is merged

List of Analyses Services are filtered by state and action buttons are rendered at the bottom of the list when selecting an Analysis Service.

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I confirm I have tested this PR thoroughly and coded it according to PEP8
and Plone's Python styleguide standards.