Minor refactoring
Removed little things I NEVER use.
Removed Git shortcuts. I never use Git from inside Vim, but rather in a side-by-side pane in Tmux.
Removed Run-in-Split shortcuts (Smart Run). I never run scripts from inside Vim anymore, but rather in a side-by-side pane in Tmux.
Moved remaining stuff from the run and debug block into general sections.
Removed the Netrw experiment (for now).: