Discontinue distribution of deb packages

[raffis]

Describe the change

The web client is mostly facing the same as the server in v2.7 gyselroth/balloon#415.

Currently balloon gets shipped as:

• docker
• deb
• tar

Should

The deployment of deb packages should be discontinued for the following reason:

• There is no real advantage of having deb packages besides docker-compose
• Managing deb dependencies is a pain
• Deb package/dependencies have different names on different systems
• balloon v2.7 has dependencies to php extensions which must be manually compiled #382
• I do not want users to encourage to use the way more complicated installation of deb packages and all their dependencies over just usint hit and run docker-compose
• We dont really have control over indirect dependencies such as eleasticsearch and their version
• Support different init systems is a pain, intiv, upstart, systemd, ...

Additional context

This will also apply to the web interface but not client utilities such as the desktop app.