shithub: puzzles

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js: Disable menu keyboard controls when dialogue box is active

I think this is broadly the wrong approach, but it's an improvement
until I implement the right one.

--- a/emccpre.js

+++ b/emccpre.js

@@ -458,6 +458,8 @@

             var cs = window.getComputedStyle(menu);

             return cs.display == "flex" && cs.flexDirection == "row";

         }

+        if (dlg_dimmer !== null)

+            return;

         if (!["ArrowLeft", "ArrowRight", "ArrowUp", "ArrowDown", "Enter",

               "Escape", "Backspace", "SoftRight"]

             .includes(event.key))