Pyodide Conversion: Bundle all the necessary ressources to load from a single webserver

[flxmr]

Is your feature request related to a problem? Please describe.

I would like to host all parts of my pyiodide converted panelapp on my own webserver. That means all the wheels are there for micropip and all the JS/CSS necessary for the components I selected. This way I can be sure the thing works as long as WASM/Rendering works without version locking and relying on the availability of CDNs.

Describe the solution you'd like

• rework the code in panel/command/bundle.py and the *_ressources and inline-options available in convert_app in panel/io/convert.py to reference locally available files
• download those files
• add code to download all the wheels from pypi/pyiodide-repo
• make sure micropip installs those wheels

Describe alternatives you've considered

None

[flxmr]

might also solve these things with the solution
#5766 (restructure to have a better api for ressources/...)
#4089 (code restructuring could deal with this)
#6123 (not 100% sure, but this definitely seems to hit on the bundling of ressources?)
#4090 (how are we going to get all the ressources/requirements, when we can't run? → likely one could add a hook on the imports OR just get the import and regex-search for pn.extension)
#5062 this also seems like the necessary rework might handle this