Add basics for common coding style guides

See this dev documentation for reference.

Sub Tasks

• Add some component for C++ formatting/linting. Add the chosen tool for C++ to the docs here: https://docs.aura.radio/en/latest/developer/development.html#code
• Add pre-commit and automatically apply formatting linting
• Also add style checks to the CI.
• Think about updating the CHANGELOG.md when doing relevant for changes affecting end-users ("changelogs are for humans", not generic commit messages)
• Think about using convential commits