Also disable winch handling in alacritty

It also reflows.

We might want to think about doing something more extensible here, as
konsole is also about to add reflow, but for now the main problem
children here are VTE and alacritty.

Extends #7491.

share/functions/__fish_config_interactive.fish

@@ -247,6 +247,10 @@ function __fish_config_interactive -d "Initializations that should be performed
         if set -q VTE_VERSION
             return
         end
+        # Same for alacritty
+        if string match -q -- 'alacritty*' $TERM
+            return
+        end
         commandline -f repaint >/dev/null 2>/dev/null
     end