feat: add v-shortcut directive for keyboard shortcuts (#942)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/942
Reviewed-by: dpschen <dpschen@noreply.kolaente.de>
Co-authored-by: konrad <k@knt.li>
Co-committed-by: konrad <k@knt.li>

src/directives/shortcut.ts

@@ -0,0 +1,17 @@
+import {Directive} from 'vue'
+import {install, uninstall} from '@github/hotkey'
+import {isAppleDevice} from '@/helpers/isAppleDevice'
+
+const directive: Directive = {
+	mounted(el, {value}) {
+		if (isAppleDevice() && value.includes('Control')) {
+			value = value.replace('Control', 'Meta')
+		}
+		install(el, value)
+	},
+	beforeUnmount(el) {
+		uninstall(el)
+	},
+}
+
+export default directive