git-arc: Improve 'list' when a review exists

[jlduran_gmail.com]

Summary

When a review exists in Phabricator, git-arc matches the first line of
the commit log with the title of the review. If there is a match, it
grabs the differential ID to query:

echo '{"names":["D12345"]}' | arc call-conduit -- phid.lookup

and gets the "status" (e.g., open, closed) as reported by the API
instead of displaying the output similar to the one produced by:

arc list --ansi

which appropriately shows a more accurate colored status (e.g.,
Accepted, Changes Planned, etc.)

Improve this by querying differential.revision.search, and
filtering the '.response.data[0].fields.status' response.

Also, bump the width to accommodate for "Changes Planned", which
contains 15 characters

[jlduran_gmail.com]

Final patch in the series.

% git arc list main..fix-git-arc-consolidated
33118f4d8db4 No Review             : git-arc.sh: Fix typo s/Truning/Turning/
775a91cc76f6 Accepted        D46767: git-arc: Do not echo unescaped literals to jq
c305f7eb5215 Accepted        D46781: git-arc: Make patch with reviewers more portable
a75479fe401f Accepted        D46789: git-arc: Fix find_author() for external users
23587ac312ed Needs Review    D46804: git-arc: Improve 'list' when a review exists

I'm not really good at painting in the terminal. I hope there is a shorter way to achieve the same result.

The branch with all the commits (plus one trivial typo fix) is on GitHub: https://github.com/jlduran/freebsd-src/tree/fix-git-arc-consolidated

[jlduran_gmail.com]

Minor fixes

• Use arc_call_conduit() instead of arc call-conduit
• Use the color name