feat: refactor to composable

- using useMediaQuery and useLocalStorage
- remove watcher in contentAuth

src/composables/useMenuActive.ts

@@ -0,0 +1,47 @@
+import {ref, watch, readonly} from 'vue'
+import {useLocalStorage, useMediaQuery} from '@vueuse/core'
+
+const BULMA_MOBILE_BREAKPOINT = 768
+
+export function useMenuActive() {
+	const isMobile = useMediaQuery(`(max-width: ${BULMA_MOBILE_BREAKPOINT}px)`)
+
+	const desktopPreference = useLocalStorage(
+		'menuActiveDesktopPreference',
+		true,
+		// If we have two tabs open we want to be able to have the menu open in one window
+		// and closed in the other. The last changed value will be the new preference
+		{listenToStorageChanges: false},
+	)
+
+	const menuActive = ref(false)
+	
+	// set to prefered value
+	watch(isMobile, (current) => {
+		menuActive.value = current
+			// On mobile we don't show the menu in an expanded state
+			// because that would hide the main content
+			? false
+			: desktopPreference.value
+	}, {immediate: true})
+
+	watch(menuActive, (current) => {
+		if (!isMobile.value) {
+			desktopPreference.value = current
+		}
+	})
+
+	function setMenuActive(newMenuActive: boolean) {
+		menuActive.value = newMenuActive
+	}
+
+	function toggleMenu() {
+		menuActive.value = menuActive.value = !menuActive.value
+	}
+
+	return {
+		menuActive: readonly(menuActive),
+		setMenuActive,
+		toggleMenu,
+	}
+}