chore: add uninstall to shortcut directive

src/directives/shortcut.ts

@@ -1,10 +1,13 @@
 import {Directive} from 'vue'
-import {install} from '@github/hotkey'
+import {install, uninstall} from '@github/hotkey'
 
 const directive: Directive = {
 	mounted(el, {value}) {
 		install(el, value)
 	},
+	beforeUnmount(el) {
+		uninstall(el)
+	},
 }
 
 export default directive