WIP Improve map performance by changing listeners

[PaulScheerRLI]

Waiting for #38 which introduces performance issues with scenarios with 800+ areas
get_authentification for geometries needs merge with project scoped authorization (ports/views.py 273)
Make the listeners of map-elements and list items more specific. this drastically improves performance for large area sets.
Lazy load geometries. geometries are loaded after page load. this reduces the time of first possible interaction with the tool

The following steps were realized (required):

• PEP 8 conform formatting (ruff)
• Check if tests pass locally
• Add the description of your changes to the CHANGELOG.md in subsection with release name ## [Unreleased] and state the PR number with #

Also the following steps were realized (if applies):

• Write docstrings to your code
• Write test(s) for new patch of code