fix: dynamic mappings are not displayed

src/lib/components/Action.svelte

@@ -9,7 +9,7 @@
   export let display: "inline-keys" | "keys" = "inline-keys"
 
   $: info = typeof action === "number" ? KEYMAP_CODES[action] ?? {code: action} : action
-  $: dynamicMapping = info.keyCode && $osLayout[JSON.stringify([info.keyCode])]
+  $: dynamicMapping = info.keyCode && $osLayout.get(info.keyCode)
 
   $: tooltip =
     (info.title ?? info.id ?? `0x${info.code.toString(16)}`) +

src/lib/components/layout/KeyText.svelte

@@ -25,7 +25,7 @@
 {#each positions as position, layer}
   {@const {action: actionId, isApplied} = $layout[layer][key.id] ?? {action: 0, isApplied: true}}
   {@const {code, icon, id, display, title, keyCode, variant} = KEYMAP_CODES[actionId] ?? {code: actionId}}
-  {@const dynamicMapping = keyCode && $osLayout[JSON.stringify([keyCode])]}
+  {@const dynamicMapping = keyCode && $osLayout.get(keyCode)}
   {@const tooltip =
     (title ?? id ?? `0x${code.toString(16)}`) +
     (variant === "left" ? " (left)" : variant === "right" ? " (right)" : "")}