Add code style config files

.editorconfig

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+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# http://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[{package.json,*.yml,*.js}]
+indent_style = space
+indent_size = 2

.eslintrc

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+{
+  "extends": "react-app",
+  "plugins": ["prettier", "eslint-plugin-cypress", "react-hooks"],
+  "rules": {
+    "prettier/prettier": "error",
+    "react-hooks/rules-of-hooks": "error",
+    "react-hooks/exhaustive-deps": "warn"
+  }
+}

.prettierignore

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+/build
+/node_modules
+/public
+*.min.js
+/cypress/videos
+/cypress/screenshots
+/cypress/medias
+/coverage

.prettierrc

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+{
+  "singleQuote": true,
+  "useTabs": false,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "printWidth": 80,
+  "semi": true,
+  "bracketSpacing": true,
+  "arrowParens": "avoid"
+}