Offline Support

[colthouse]

Hey, thanks for your work.

The extension checks for updates but crashes if it can't reach GitHub. This prevents me from using this extension offline which is quite the shame.

Language server harper-ls:

from extension "harper" version 0.1.0: Failed to fetch latest release: error fetching latest release

Caused by:
    0: error sending request for url (https://api.github.com/repos/elijah-potter/harper/releases)
    1: client error (Connect)
    2: operation timed out

[Greenheart]

I looked into a solution for this, but it seems like this is a common problem for many Zed extensions at the moment. Hopefully this will be improved in the future, so that Zed automatically handles caching of extensions.

Related Zed issue: zed-industries/zed#24878