On nightly, when I run `zed` under WSL, I get an error parsing the
shebang line
```
/usr/bin/env: ‘sh\r’: No such file or directory
```
I believe that this is because in CI, Git checks out the file with CRLF
line endings, and that is how it is copied into the installer.
Also, the file extension was incorrect when downloading the production
remote server (a gzipped binary), preventing extraction from working
properly.
Release Notes:
- N/A
This PR adds a `.gitattributes` rule to prevent GitHub from displaying
comments within JSON files as errors.
We have a number of JSON files (e.g., settings) that make use of
comments, and having a bunch of red in a diff is annoying.
Release Notes:
- N/A
