reactでのweb開発で、ブラウザの日本語が文字化けする。

実現したいこと

reactでのweb開発で、
ブラウザの日本語が文字化けする現象を解決したいです。

前提

開発環境でreactを使ったWEB画面を作成しています。
その際、日本語をWEB画面に表示させると文字化けしてしまいます。

関係しそうなソースコード

pakage.json
1{
2  "name": "",
3  "version": "1.0.0",
4  "description": "",
5  "keywords": [],
6  "main": "src/index.tsx",
7  "dependencies": {
8    "@chakra-ui/icons": "1.0.4",
9    "@chakra-ui/react": "1.2.1",
10    "@emotion/react": "11.1.4",
11    "@emotion/styled": "11.0.0",
12    "@types/react-router-dom": "5.1.7",
13    "axios": "0.21.1",
14    "framer-motion": "3.3.0-beta.22",
15    "react": "17.0.1",
16    "react-dom": "17.0.1",
17    "react-router-dom": "5.2.0",
18    "react-scripts": "4.0.0"
19  },
20  "devDependencies": {
21    "@types/react": "17.0.0",
22    "@types/react-dom": "17.0.0",
23    "typescript": "4.0.5"
24  },
25  "scripts": {
26    "start": "react-scripts start",
27    "build": "react-scripts build",
28    "test": "react-scripts test --env=jsdom",
29    "eject": "react-scripts eject"
30  },
31  "engines": {
32    "node": "16.x"
33  },
34  "browserslist": [
35    ">0.2%",
36    "not dead",
37    "not ie <= 11",
38    "not op_mini all"
39  ]
40}

index.html

html
1<!DOCTYPE html>
2<html lang="ja">
3  <head>
4    <meta charset="UTF-8" />
5    <link rel="icon" href="%PUBLIC_URL%/favicon.png" />
6    <meta name="viewport" content="width=device-width, initial-scale=1" />
7    <meta name="theme-color" content="#000000" />
8    <meta
9      name="description"
10      content="Web site created using create-react-app"
11    />
12    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo.png" />
13    <!--
14      manifest.json provides metadata used when your web app is installed on a
15      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
16    -->
17    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
18    <!--
19      Notice the use of %PUBLIC_URL% in the tags above.
20      It will be replaced with the URL of the `public` folder during the build.
21      Only files inside the `public` folder can be referenced from the HTML.
22
23      Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
24      work correctly both with client-side routing and a non-root public URL.
25      Learn how to configure a non-root public URL by running `npm run build`.
26    -->
27    <title>Devconsultation</title>
28  </head>
29  <body>
30    <noscript>You need to enable JavaScript to run this app.</noscript>
31    <div id="root"></div>
32    <!--
33      This HTML file is a template.
34      If you open it directly in the browser, you will see an empty page.
35
36      You can add webfonts, meta tags, or analytics to this file.
37      The build step will place the bundled scripts into the <body> tag.
38
39      To begin the development, run `npm start` or `yarn start`.
40      To create a production bundle, use `npm run build` or `yarn build`.
41    -->
42  </body>
43</html>
44