UPDATE: split the webapp in a widget and the app itself

This splits the webapp in:

* IronCalc (the widget to be published on npmjs)
* The frontend for our "service"
* Adds "dummy code" for the backend using sqlite

webapp/IronCalc/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "ironcalc",
+  "private": true,
+  "version": "0.3.0",
+  "type": "module",
+  "main": "./dist/ironcalc.js",
+  "module": "./dist/ironcalc.js",
+  "source": "./src/index.ts",
+  "types": "./dist/index.d.ts",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build && tsc",
+    "check": "biome check ./src",
+    "check-write": "biome check --write ./src",
+    "test": "vitest run"
+  },
+  "dependencies": {
+    "@emotion/react": "^11.11.4",
+    "@emotion/styled": "^11.11.5",
+    "@ironcalc/wasm": "file:../../bindings/wasm/pkg",
+    "@mui/material": "^5.15.15",
+    "i18next": "^23.11.1",
+    "lucide-react": "^0.427.0",
+    "react-colorful": "^5.6.1",
+    "react-i18next": "^13.5.0"
+  },
+  "devDependencies": {
+    "@biomejs/biome": "1.8.3",
+    "@vitejs/plugin-react": "^4.2.1",
+    "ts-node": "^10.9.2",
+    "typescript": "~5.6.2",
+    "vite": "^6.0.5",
+    "vite-plugin-svgr": "^4.2.0",
+    "vitest": "^2.0.5",
+    "react": "^18.0.0"
+  },
+  "peerDependencies": {
+    "@types/react": "^18.0.0",
+    "react": "^18.0.0"
+  },
+  "peerDependenciesMeta": {
+    "@types/react": {
+      "optional": true
+    }
+  }
+}