feat: reply editor follow-up (#13106)

Co-authored-by: aakashb95 <aakashbakhle@gmail.com>

app/javascript/dashboard/composables/utils/useKbd.js

@@ -1,14 +1,25 @@
 import { computed } from 'vue';
 
+function isMacOS() {
+  // Check modern userAgentData API first
+  if (navigator.userAgentData?.platform) {
+    return navigator.userAgentData.platform === 'macOS';
+  }
+  // Fallback to navigator.platform
+  return (
+    navigator.platform.startsWith('Mac') || navigator.platform === 'iPhone'
+  );
+}
+
 export function useKbd(keys) {
   const keySymbols = {
-    $mod: navigator.platform.includes('Mac') ? '⌘' : 'Ctrl',
+    $mod: isMacOS() ? '⌘' : 'Ctrl',
     shift: '⇧',
     alt: '⌥',
     ctrl: 'Ctrl',
     cmd: '⌘',
     option: '⌥',
-    enter: '↩',
+    enter: '↵',
     tab: '⇥',
     esc: '⎋',
   };
@@ -16,7 +27,11 @@ export function useKbd(keys) {
   return computed(() => {
     return keys
       .map(key => keySymbols[key.toLowerCase()] || key)
-      .join('')
+      .join(' ')
       .toUpperCase();
   });
 }
+
+export function getModifierKey() {
+  return isMacOS() ? '⌘' : 'Ctrl';
+}