move to client code only

src/store.js

@@ -0,0 +1,22 @@
+import { writable } from 'svelte/store';
+
+const stored_apikey = localStorage.getItem('apikey');
+export const apikey = writable(stored_apikey);
+apikey.subscribe((value) => {
+	localStorage.setItem('apikey', value);
+});
+const stored_stationinfo = localStorage.getItem('stationinfo');
+export const stationinfo = writable(stored_stationinfo);
+stationinfo.subscribe((value) => {
+	localStorage.setItem('stationinfo', value);
+});
+const stored_page = localStorage.getItem('page');
+export const page = writable(stored_page);
+page.subscribe((value) => {
+	localStorage.setItem('page', value);
+});
+const stored_lang = localStorage.getItem('lang') === 'null' ? navigator.language : localStorage.getItem('lang');
+export const lang = writable(stored_lang);
+lang.subscribe((value) => {
+	localStorage.setItem('lang', value);
+});