TRG 1.02: Make it clear that the installation is for users and perhaps devs

[Siegfriedk]

The TRG 1.02 is to vague; The Installation guide main target audiance is the consumer / enduser and not the developer. One team described only how to run it locally etc. but not how to install it officially.

https://eclipse-tractusx.github.io/docs/release/trg-1/trg-1-2

AC:

• Make it clear that there are two target audiances enduser and dev
• Make it clear that the enduser has Prio 1
• Add Tips & Tricks section
  • Reference helm chart Readme
  • Step-by-step guide with copy option
  • "Local development"
  • Installing it through official helm chart repo
  • look at other Install.md files and add further t&t