i3: fix alacritty class

dropdown-term script is necessary because i3 doesn't like the ,

.config/i3/config.common

@@ -182,10 +182,8 @@ bindsym --release control+Print exec --no-startup-id flameshot screen
 bindsym $mod+Shift+l exec --no-startup-id ~/bin/lock_jan
 bindsym $mod+Shift+BackSpace exec --no-startup-id ~/bin/suspend_jan
 bindsym mod1+Tab exec --no-startup-id rofi -show window
-set $ddterm_command tdrop -n "ddterm" -m -w "50%" -h "60%" -x "50%" -y 0 \
-        -a -f '--class="dropdown"' alacritty
-bindsym $mod+asciicircum exec $ddterm_command
-bindsym $mod+dead_circumflex exec $ddterm_command
+bindsym $mod+asciicircum exec dropdown-term
+bindsym $mod+dead_circumflex exec dropdown-term
 bindsym --release $mod+Delete exec xkill
 bindsym $mod+period exec dunstctl history-pop
 bindsym $mod+c exec --no-startup-id rofi -show ssh

.local/bin/dropdown-term

@@ -0,0 +1,6 @@
+#!/usr/bin/env zsh
+
+setopt LOCAL_OPTIONS ERR_RETURN NO_UNSET PIPE_FAIL
+
+tdrop -n ddterm -m -w 50% -h 60% -x 50% -y 0 -a \
+    -f '--class=Alacritty,dropdown' alacritty