* fix: fav icon is fixed and bootstrap is removed
* fix: return type is updated for the global time reducer
* fix: theme.css is replaced with .min.css
* update: useThemeSwitcher is removed from the graph component and value is grabed from the reducer
* update: instrumentation page is updated
* update: react-css-theme-switcher package is removed
* update: darkMode is updated
* fix: Sider component is updated
