* fix broken light (invalid use of heavy dependencies)
- move elevation calculation to serve_rendered and stub in serve_light due to use of canvas and sharp
- elevation api is not available for light
* add elevatppy lint:js:fix
* remove not working isLight function
* apply lint:js:fix
* add isLight to data.tmpl
* add note of not available elevation api in light version
* hide elevation link in light version
* cleanup terrain and elevation template flags
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Co-authored-by: Miko <miko@none>