chore(release): v1.4.0

Shortcuts gain several bindings per action, mouse buttons and a searchable
picker, and the stored shortcut schema changes shape, so this is a minor bump.
Existing shortcuts migrate on first launch.

Play release notes state that this release carries no mobile feature changes;
the work is desktop-only.

site/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "d3ro-voice-site",
-  "version": "1.3.7",
+  "version": "1.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "d3ro-voice-site",
-      "version": "1.3.7",
+      "version": "1.4.0",
       "dependencies": {
         "react": "^19.0.0",
         "react-dom": "^19.0.0"