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/README.md

@@ -1,58 +0,0 @@
-# IronCalc Web App
-
-The webapp is build with React and TypeScript. We use icons from [Lucide](https://lucide.dev/)
-
-## Build
-
-First thing build the wasm is the `../bindings/wasm` folder.
-
-If you have nodejs installed you just need to:
-
-```bash
-npm install
-```
-
-## Local development
-
-
-```bash
-npm run dev
-```
-
-## Linter and formatting
-
-We use [biome](https://biomejs.dev/):
-
-```
-npm run check
-```
-
-Will check for linter and formatting issues.
-
-## Testing
-
-We use vitest. Simply:
-
-```
-npm run test
-```
-
-Warning: There is only the testing infrastructure in place.
-
-## Deploy
-
-Deploying is a bit of a manual hassle right now:
-To build a deployable frontend:
-
-```bash
-npm run build
-```
-
-Please copy the `inroncalc.svg` icon and the models you want to have as 'examples' in the internal 'ic' format.
-I normally compress the wasm and js files with brotli
-
-```
-brotli wasm_bg-*****.wasm
-```
-
-Copy to the final destination and you are good to go.