[REFACTOR] Yet another refactor

[pixincreate]

Currently, there exist a lot of moving parts and I'm still figuring out what works best for me.

Anything that works on Mac, works fine on Android as well as on Debian. We need to handle Windows as a separate thing.

Shell does not work on Windows, and IMO, PowerShell is just unreliable and the pattern is completely different. It is not a shell.

Upcoming refactor should address:

• Instability with zsh, tmux and alacritty on Mac
• Tmux and zsh should work fine on Android and Debian (WSL for now)
• PowerShell should be comparable to zsh at least in some way. It sucks now!

[pixincreate]

• Do not install MacOS specific applications on Linux based Distros as brew is unsupported. Make use of apt, pacman, yay, paru and etc.,
• Make .zshrc configurable by calling a function. User should be allowed to change between Zellij and Tmux, Powerlevel10K and Starship
• Fix update_gitconfig_data function not properly setting up signing key file
• Make ps1 file behavior same (or at least as close as) .zshrc
• Modify vsCode bindings on Windows to match that of Mac
• Add backup scripts, other configuration files on both Unix as well as Windows
• Possibly, make the setup files interactive where user gives inputs on what needs to be done instead of just being a single click installer