Update the map when changing filter options in proposals

[microstudi]

Original requirement

As a user, I would like the filter functions to steer the displayed flags on the map to give me a better overview.

Context

Currently, when visiting the public page for a proposal's component, with geolocation/maps activated, a map shows a collection of points with the proposals. problem_described.webm

However, when changing the filter options for the list view, the map does not change.
Notes:

• the "refresh" action is using javascript. Probably is not updating the map.
• The map is generated using the @all_geocoded_proposals var in ProposalsController.

Tasks

• Automatically refresh the map to match the filtering options.