fix: Add prettier and eslint and fix issues

Author: JanCizmar

.eslintrc.json

@@ -0,0 +1,52 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "ignorePatterns": [
+    "**/*.generated.*",
+    "*.js"
+  ],
+  "extends": [
+    "eslint:recommended",
+    "plugin:react/recommended",
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaFeatures": {
+      "jsx": true
+    },
+    "ecmaVersion": 12,
+    "sourceType": "module"
+  },
+  "plugins": [
+    "react",
+    "@typescript-eslint",
+    "prettier"
+  ],
+  "settings": {
+    "react": {
+      "version": "detect"
+    }
+  },
+  "rules": {
+    "prettier/prettier": "error",
+    "no-console": "warn",
+    "@typescript-eslint/no-explicit-any": "off",
+    "@typescript-eslint/ban-ts-comment": "off",
+    "react/react-in-jsx-scope": "off",
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "@typescript-eslint/no-empty-function": "off",
+    "@typescript-eslint/no-unused-vars": [
+      "warn",
+      {
+        "args": "none",
+        "varsIgnorePattern": "^_"
+      }
+    ],
+    "@typescript-eslint/no-non-null-assertion": "off",
+    "react/prop-types": "off",
+    "@typescript-eslint/no-empty-interface": "off"
+  }
+}

.prettierignore

@@ -0,0 +1,6 @@
+build
+public
+
+./*.json
+
+**/*.generated.*

.prettierrc.json

@@ -0,0 +1,5 @@
+{
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "singleQuote": true
+}