feat(fs.dev): Added theme support

packages/freesewing.shared/hooks/useLocalStorage.js

@@ -0,0 +1,32 @@
+import { useState } from 'react'
+
+// See: https://usehooks.com/useLocalStorage/
+
+function useLocalStorage(key, initialValue) {
+  const prefix = 'fs_'
+  const [storedValue, setStoredValue] = useState(() => {
+    if (typeof window === 'undefined') return initialValue // SSR has no window object
+    try {
+      const item = window.localStorage.getItem(prefix + key)
+      return item ? JSON.parse(item) : initialValue
+    } catch (error) {
+      console.log(error)
+      return initialValue
+    }
+  })
+
+  const setValue = (value) => {
+    if (typeof window === 'undefined') return null // SSR has no window object
+    try {
+      const valueToStore = value instanceof Function ? value(storedValue) : value
+      setStoredValue(valueToStore)
+      window.localStorage.setItem(prefix + key, JSON.stringify(valueToStore))
+    } catch (error) {
+      console.log(error)
+    }
+  }
+
+  return [storedValue, setValue]
+}
+
+export default useLocalStorage