Use a max line length of 80 universally, and allowlist docstrings with `# noqa: E501`

[ianstenbit]

See conversation in #1509.

This should essentially just require that we switch our linter config to universally enforce 80 chars/line, and add the # noqa: E501 tag to all docstrings > 80 chars wide.

[ID6109]

I'd like to take this up @ianstenbit

[haifeng-jin]

For long lines of URLs in the docstrings, we should tag them with # noqa: E501.

For other types of long lines that can be adjusted, we should just adjust them. They exist in the codebase because we did not enforce 80 char for a while. So some PRs with other long lines also got merged.

The PR should also change the max-line-length to 80 from 200 in setup.cfg.

[ID6109]

The max-line-length is already set to 80. Should the max-doc-length be changed from 200 to 80? W505 errors will be introduced then.

[haifeng-jin]

After #1509 is merged, the max-line-length will be 200 and max-doc-length will be removed.

[ID6109]

I'll submit a PR by tomorrow