web-installer: Add Volla Tablet (mimir)

Description

Add web installer configuration for Volla Tablet (mimir)

Screenshots

Technical details

web-installer-locked.log

Tests

1. Get the docker image and run it

   docker pull registry.gitlab.e.foundation/e/devices/eos-installer:latest
   docker run -p 3000:80 eos-installer

2. Open http://localhost:3000 in webusb supported browser (chromium derivatives) and proceed with installation

3. Verify device boots successfully with locked bootloader

Issues

https://gitlab.e.foundation/e/devices/backlog/-/issues/1258

10 commandments of code review

👪 ❤️ https://gitlab.e.foundation/groups/e/-/wikis/contribute/development-processes/code-review-guidelines