Going forward for new installations, config and data files will be
stored at the platform default paths, as defined by
[env-paths](https://www.npmjs.com/package/env-paths).
For backwards compatibility, if the `~/.waveterm` or `WAVETERM_HOME`
directory exists and contains valid data, it will be used. If this check
fails, then `WAVETERM_DATA_HOME` and `WAVETERM_CONFIG_HOME` will be
used. If these are not defined, then `XDG_DATA_HOME` and
`XDG_CONFIG_HOME` will be used. Finally, if none of these are defined,
the [env-paths](https://www.npmjs.com/package/env-paths) defaults will
be used.
As with the existing app, dev instances will write to `waveterm-dev`
directories, while all others will write to `waveterm`.
This will take the latest artifact from the waveterm-docs repo and embed
it in the app binary. When the help view is launched, it will be served
from our backend. If the embedded copy doesn't exist, such as in
unpackaged versions of the app or in locally packaged versions, it will
use the hosted site instead.
There is a sibling PR in the docs repository to build the embedded
version of the app (strips out some external links, removes Algolia
DocSearch, updates the baseUrl)
https://github.com/wavetermdev/waveterm-docs/pull/46
