feat: can import geojson files as layer with query params

[f-necas]

Description

PR used to import GeoJSON files from query parameters.

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)

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Other... Please describe:

Issue

What is the current behavior?

#8927

What is the new behavior?
GeoJSON can be imported with an action query parameter.

https://dev-mapstore.geosolutionsgroup.com/mapstore/#/viewer/config?actions=[{"type":"CATALOG:ADD_LAYERS_FROM_CATALOGS","layers":["LayerTitle"],"sources":[{"type":"GEOJSON","url":"https://pkgstore.datahub.io/examples/geojson-tutorial/example/data/db696b3bf628d9a273ca9907adcea5c9/example.geojson"}]}]

Breaking change

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

• Yes, and I documented them in migration notes
• No

Other useful information

[allyoucanmap]

The implementation looks good, thanks @f-necas for the contribution!
Just some general changes below in particular a fix for the missing notification error when the url of a GeoJSON is not valid

[f-necas]

Thanks @allyoucanmap for the review. I've made the changes.

[allyoucanmap]

@f-necas there was a temporary problem with the readthedocs so I'll need to close and reopen the PR again to trigger the workflow

[allyoucanmap]

@ElenaGallo please test this enhancement on dev, thanks

[landryb]

fwiw, went to try this with the link in the PR description, and here it fails:

Error
Some records have not been found: LayerTitle Please check the query URL and its parameters.

is the syntax in the sample url valid ? is the geosolutions dev instance deployed with this PR ?

[tdipisa]

https://pkgstore.datahub.io/examples/geojson-tutorial/example/data/db696b3bf628d9a273ca9907adcea5c9/example.geojson

@landryb, please see the browser console where a 403 is returned. That's the MS proxy that is currently blocking that URL.

[landryb]

right. blunders damn CORS...