Replace webpack with only esbuild, replace react with preact

reduce node_modules size to only 18M

reduce js file bundle to 20%

web/package.json

@@ -3,42 +3,12 @@
   "version": "1.2.0",
   "private": true,
   "dependencies": {
-    "@testing-library/jest-dom": "^5.16.5",
-    "@testing-library/react": "^13.4.0",
-    "@testing-library/user-event": "^14.4.3",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
-    "react-router": "^6.4.4",
+    "@preact/compat": "^17.1.2",
+    "esbuild": "^0.15.17",
     "react-router-dom": "^6.4.4",
-    "react-scripts": "^5.0.1",
-    "water.css": "^2.1.1",
-    "web-vitals": "^3.1.0"
+    "water.css": "^2.1.1"
   },
   "scripts": {
-    "start": "react-scripts start",
-    "build": "react-scripts build",
-    "test": "react-scripts test",
-    "eject": "react-scripts eject"
-  },
-  "eslintConfig": {
-    "extends": [
-      "react-app",
-      "react-app/jest"
-    ]
-  },
-  "browserslist": {
-    "production": [
-      ">0.2%",
-      "not dead",
-      "not op_mini all"
-    ],
-    "development": [
-      "last 1 chrome version",
-      "last 1 firefox version",
-      "last 1 safari version"
-    ]
-  },
-  "devDependencies": {
-    "@types/react": "^18.0.25"
+    "build": "node build.js"
   }
 }