Add website built to plugin

[JakobMiksch]

Currently the user can create a config file for Wegue, but actually it takes some more effort for the user to build a functional wegue webmap.

It might be useful to provide a built version of the Wegue application that works out of the box with configuration file. Hence the user can create a fully functional web application and not only the configuration file.

A problem could be that Wegue needs a webserver to work. In contrast to QGIS2Web which can simply be opened by a web browser.

[chrismayer]

Also easy to achive in case the user is familiar with Docker. The created Wegue config file could be mounted into a running Wegue container.

But yes I see that there might be a need for an approach to get the complete webapp out of the qgis2wegue plugin.