Fix channel notes searching in buffer picker (#29611)

Previously they all used the name "Channels" for searching, now it uses
the actual content of the channel name and status.

Release Notes:

- N/A
f7f44bfbedJulia Ryan committed on 4/29/2025, 5:57:39 PM· committed by GitHubparentfd17f2d
1 file changedLine totals unavailable