*: Fix some old uses of st as terminal

I replaced st with kitty in 0139294831 ("Use kitty instead of st as
terminal").

.config/polybar/config

@@ -151,11 +151,12 @@ type = internal/network
 interface = wlan0
 interval = 3
 
+; TODO: use $TERMINAL
 format-connected = <label-connected>
-label-connected = %{A1:st -t polybar-wlan -e nmtui connect &:} %essid:0:20:...%:%signal%% %{A}
+label-connected = %{A1:kitty --single-instance -T polybar-wlan -e nmtui connect &:} %essid:0:20:...%:%signal%% %{A}
 
 format-disconnected = <label-disconnected>
-label-disconnected = %{A1:st -t polybar-wlan -e nmtui connect &:} %ifname% disconnected %{A}
+label-disconnected = %{A1:kitty --single-instance -T polybar-wlan -e nmtui connect &:} %ifname% disconnected %{A}
 
 ;#################################################
 

.config/polybar/scripts/calendar.sh

@@ -31,7 +31,8 @@ elif [[ $1 = "-t" ]]; then
 	# Kill and exit if already running to achieve a toggle.
 	! pkill -f "$TITLE" || exit 0
 
-	exec st -A 0.45 -t "$TITLE" "$0"
+	# TODO: Use $TERMINAL
+	exec kitty --single-instance -T "$TITLE" "$0"
 else
 	# Backend