Fix #10783 Support for favorites

[allyoucanmap]

Description

This PR introduces:

• a new plugin called Favorites that renders a button inside the resource cards. This button allows users to add/remove resources to their own favorites
• new checkbox field inside the filter form for authenticated user to filter favorites resources
• a new outline heart glyph called heart-o

Card with the favorites button

favorites.mp4

New checkbox in the filter form

Please check if the PR fulfills these requirements

• The commit message follows our guidelines: https://github.com/geosolutions-it/MapStore2/blob/master/CONTRIBUTING.md
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x", remove the others)

• Feature

Issue

What is the current behavior?

#10783

What is the new behavior?

A new favorites button has been added to the resource cards

Breaking change

Does this PR introduce a breaking change? (check one with "x", remove the other)

• No

Other useful information

This PR must be merged after the implementation on GeoStore has been completed (see geosolutions-it/geostore#402)

[offtherailz]

LGTM, also the code is good.

My only comment is about accessibility of "Favs" that is a little hidden and not so immediate, as a filter.

As a user, I expect to have a quick button to reach my favorites (anyway the same is for my own resources)

Take it as a suggestion for a futher improvemnt. Some ideas are:

• a quick filter for favorites or my resources
• a tab/switcher with featured, that allows to see only favorites.
  

[allyoucanmap]

LGTM, also the code is good.

My only comment is about accessibility of "Favs" that is a little hidden and not so immediate, as a filter.

As a user, I expect to have a quick button to reach my favorites (anyway the same is for my own resources)

Take it as a suggestion for a futher improvemnt. Some ideas are:

• a quick filter for favorites or my resources
• a tab/switcher with featured, that allows to see only favorites.

@offtherailz included your comment here #10774

[allyoucanmap]

@ElenaGallo please test this new feature on dev, thanks