fix: load stored theme before rendering

src/constants/constants.ts

@@ -1,3 +1,6 @@
 export const UNCATEGORIZED = '__uncategorized__'
 
 export const PAGE_SIZE = 8
+
+export const LIGHT_MODE = 'light', DARK_MODE = 'dark', AUTO_MODE = 'auto'
+export const DEFAULT_THEME = AUTO_MODE