Reimplement favorites & geometry filtering following the internal data format change

[jahow]

Following #464 filtering on favorites and/or geometry has been disabled in the search state effects. See:

• geonetwork-ui/libs/feature/search/src/lib/state/effects.ts

  Line 135 in 88f0225

  // FIXME: favorites, geometry

• geonetwork-ui/libs/feature/search/src/lib/state/effects.spec.ts

  Line 285 in 88f0225

  describe.skip('when asking for favorites only', () => {

• geonetwork-ui/libs/feature/search/src/lib/state/effects.spec.ts

  Line 315 in 88f0225

  describe.skip('when providing a filter geometry', () => {

This should be reactivated properly.