Switch from vim-airline to nvim-lualine

[zhimsel]

https://github.com/nvim-lualine/lualine.nvim

Maybe. Gotta see if there's feature parity. Otherwise, I'll stick with airline (even though it's vimscript).

Things to configure/address:

• [ ] section components
• [ ] section dividers
• [ ] tab/buffer line
• [ ] customize the theme (if necessary)
• [ ] mode abbreviations

[zhimsel]

At this time, not worth the effort. I don't really get any benefits from switching, and there's a few things missing.

[zhimsel]

Getting LSP errors, etc is worth it.