In cozy-script we used to enforce the development mode when doing a
`yarn watch`

The development mode changes the build behavior by removing some steps
like minification which results to a faster build

A side effect is that the code generated from the `watch` command is a
bit different than the one generated from `build` command. This may
produce some differences on the app's behavior, but this is rare enough
(happened 1 or 2 times in the past years) so we consider the speed gain
to still be valuable. Also we know that we should run a `build` locally
as ultimate check before pushing new code to the git repo

So we want to enable this mode in the new Rsbuild configuration

Here are the timings for initial build and then 4 differents edits in
the code that trigger a re-build

yarn watch
```
    4,66s (initial build)
    4,84s
    4,12s
    4,63s
    5,08s
```

yarn watch --mode development
```
    3,09s (initial build)
    0,66s
    0,34s
    0,18s
    0,45s
```

Related code:
https://github.com/cozy/create-cozy-app/blob/master/packages/cozy-scripts/scripts/watch.js#L13

`rsbuild-config-cozy-app` has been upgraded to `0.2.0` in order to
retrieve the configuration needed to run `rsbuild dev` with our
cozy-stack based architecture and then benefits from HMR feature

Related PR: cozy/cozy-libs#2700

Since previous commit we can run `rsbuild dev` to enable HMR feature

We now have 3 different scripts:
- `yarn build`: build the app for production
- `yarn watch`: like for the `build` script but with some optimizations
  in order to build faster and to trigger rebuild automatically when
  the code changes
- `yarn dev`: build the app with HMR enabled. This should be the
  fastest way to debug the app, but the HMR feature may prevent the app
  to work in some environments (i.e. flagship app)

`rsbuild-config-cozy-app` has been upgraded to `0.2.1` in order to
retrieve the configuration needed to run intents and public targets in
the `rsbuild dev` mode

Related PR: cozy/cozy-libs#2717

`rsbuild-config-cozy-app` has been upgraded to `0.3.0` in order to
retrieve the configuration needed to import images and static assets

Related PR: [cozy/cozy-libs#2728](cozy/cozy-libs#2728)