revert(shell): move iris integration to the iris branch

Reverts 43dfe48, 0692ae3, e0cdcd6 and the cable-description half of
098da70 (the star-prompt stats stay). master returns to the pre-iris
shell setup: atuin in fish/zsh/bash, the down -> pj binding with
PJ_QUIET, and the fish/zsh key bindings as they were. The iris work
lives on the `iris` branch.

television/cable/jobs.toml

@@ -1,11 +1,11 @@
 [metadata]
 name = "jobs"
 description = """
-The current shell's background jobs (stopped or running). tv runs in a child
-process and cannot see the shell's job table, so the ctrl-z binding (fish
-_jobs_bind, zsh jobs-fg) writes it to the file named by $TV_JOBS; enter prints
-the job id and the binding runs `fg %<id>`; ctrl-d kills the job. Opened any
-other way, the list is empty.
+The current fish shell's background jobs (stopped or running). tv runs in a
+child process and cannot see the shell's job table, so the ctrl-z binding
+(_jobs_bind) writes it to the file named by $TV_JOBS; enter prints the job id
+and the binding runs `fg %<id>`; ctrl-d kills the job. Opened any other way,
+the list is empty.
 """
 requirements = ["ps"]