[Home]: Separate homepage from datahub in two apps

[tkohr]

The idea of this PR is to separate the homepage from the datahub in different apps to facilitate routing on the georchestra plattform.

The home app should run under datamel.fr/accueil and the datahub app under datamel.fr/catalogue.

To-dos:

• [x] use same assets/icons in both apps:
• [x] use same styles
• [x] convert home bundler to vite (currently webpack)
• [x] app.modules: clean unused imports
• [x] e2e tests: move and adapt home tests
• [x] docker builds: add home image
• [x] remove /search ?
  • not to be done for now
  • tried re-implement/override router.service without search using router.config in router with https://github.com/geonetwork/geonetwork-ui/pull/845 merged => breaks updating search filters
  • ongoing PR to allow other search routes as /search: https://github.com/geonetwork/geonetwork-ui/pull/850
  • BUT: an empty search route is still problematic

[f-necas]

@tkohr I pushed a small commit for image names, feel free to merge when it's ok for you :)