Update dependencies to fix known security vulnerabilities

* This quickly snowballs to updating the React version as some of the
  dependant libraries (like react-tag-input) only support the latest one.

* The other major chunk of vulnerabilities was in webpack.

* Tests were migrated from Enzyme to React Testing Library beforehand

Author: malor

eslint.config.js

@@ -0,0 +1,48 @@
+import js from '@eslint/js';
+import typescript from '@typescript-eslint/eslint-plugin';
+import typescriptParser from '@typescript-eslint/parser';
+import react from 'eslint-plugin-react';
+
+export default [
+  js.configs.recommended,
+  {
+    files: ['src/**/*.{js,jsx,ts,tsx}'],
+    languageOptions: {
+      parser: typescriptParser,
+      parserOptions: {
+        ecmaVersion: 2020,
+        sourceType: 'module',
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+      globals: {
+        browser: true,
+        jest: true,
+      },
+    },
+    plugins: {
+      '@typescript-eslint': typescript,
+      react: react,
+    },
+    settings: {
+      react: {
+        version: 'detect',
+      },
+    },
+    rules: {
+      ...typescript.configs.recommended.rules,
+      ...react.configs.recommended.rules,
+      '@typescript-eslint/no-empty-function': 'off',
+      '@typescript-eslint/comma-dangle': ['error', 'always-multiline'],
+      '@typescript-eslint/space-before-function-paren': ['error', {
+        anonymous: 'always',
+        asyncArrow: 'always',
+        named: 'never',
+      }],
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/explicit-module-boundary-types': 'off',
+      '@typescript-eslint/no-var-requires': 'off',
+    },
+  },
+];