feature/zsh

[edheltzel]

• upp function added to zsh fixes local and config aliases
• package updates through topgrade
• removes legacy
• Add new aliases and update existing ones
• Add variables for key Zsh directories
• Remove unnecessary code and update function loading in .zshrc
• Add brew and starship initialization, remove plugins.txt
• Update zsh exports with comments
• Update starship.toml with time display and line break changes
• Enable line break in starship.toml config file
• Update zsh configuration and environment variables
• using zap plugin manager
• Update aliases in zsh configuration
• Add rbenv initialization to zsh exports