Clear up with minor updates.

src/App.js

@@ -1,4 +1,4 @@
-import React, {useEffect, useState} from 'react';
+import React from 'react';
 
 import './overrides.scss';
 import "bootstrap/dist/js/bootstrap.bundle.min";
@@ -40,9 +40,8 @@ import Japan from './Japan/Japan';
 function App() {
     return (
     <Router>
-      <div className='row '>
+      <div className="row">
         <Navigation />
-
         <Routes>
             <Route exact path='/' element={<Home />}></Route>
             <Route exact path='/pages/software' element={<Software />}></Route>

src/Pages/Linux/Linux.js

@@ -1,6 +1,4 @@
 import React from 'react';
-import ContentItem from '../../Content/ContentItem';
-import Sidebar from '../../UI/Sidebar';
 
 const Linux = () => {
     return (        

src/UI/Navigation.js

@@ -9,7 +9,7 @@ let chapter = window.location.pathname.split('/')[3];
 
 const Navigation = () => {
     const [theme, setTheme] = useState(
-        localStorage.getItem('theme') || 'light'
+        localStorage.getItem('theme') || 'dark'
       );
 
     useEffect(() => {