Web: Get the default plugin when we create a new plugin

[ElSalvo96]

The idea is that we want to create a simple Genesi plugin as a template for everyone.
This can be happen for every user want to create a new plugin.

So, when a user want to create a new plugin the frontend need to call a new Api.
The Api return the plugin Id
The frontend make a redirenct to this plugin

### Tasks
- [ ] https://github.com/GenesiAI/PluginsApi/issues/57
- [ ] Interface the new API into frontend
- [ ] The frontend get the plugin Id and redirenct to this plugin
- [ ] Remove the route /new

Bring to pruduction, after that

### Tasks
- [ ] Remove the old API and clean the project
- [ ] Refractor this code [API: Save users to db #29](https://github.com/GenesiAI/PluginsApi/issues/29) and remove the check and creations