feat(config): integrate iris and streamline keybindings

dot_config/fish/functions/_pj_bind.fish

@@ -1,14 +1,13 @@
-function _pj_bind --description 'ctrl-p / down: pj (tv --inline), then redraw the prompt in the right place'
+function _pj_bind --description 'ctrl-p: pj (tv --inline), then redraw the prompt in the right place'
     # pj reports through $PJ_STATE: `open` = the picker was cancelled and
     # left the cursor on the line below the prompt; empty = no task sources,
     # nothing drawn — but fish's repaint after an external command still
     # lands one line low, so both step back up. `ran` = a task printed
     # output: new line, prompt below it.
     set -lx PJ_STATE (mktemp)
-    if contains -- --quiet $argv
-        set -lx PJ_QUIET 1
-    end
+    _iris_busy start
     pj
+    _iris_busy stop
     set -l state (cat $PJ_STATE)
     switch "$state"
         case open ''