Jonas Jenwald e59c2dc308 Build the web/viewer.css file used in the development viewer (i.e. gulp server)
To allow using modern CSS features that currently only Mozilla Firefox supports[1], while still enabling development/testing in recent Google Chrome versions, we'll have to start building the `web/viewer.css` file with `gulp server` as well.

In my testing, building the development CSS (and copying the images) takes *less than* `200 ms` on average which is hopefully an acceptable overhead for this sort of feature.

---
[1] In particular `float`, with `inline-start`/`inline-end` values.
2022-03-15 13:37:44 +01:00
..