fix(treesitter): install viml parser

[clason]

closes #48

[mlabrkic]

We need to add a vim parser to "ensure_installed".

When there is a vimscript in the lua file then we get a Treesitter error. Example: Treesitter error on vim.cmd() in init.lua file.

-- [[ Configure Treesitter ]] -- See :help nvim-treesitter require('nvim-treesitter.configs').setup { -- Add languages to be installed here that you want installed for treesitter -- ensure_installed = { 'c', 'cpp', 'go', 'lua', 'python', 'rust', 'typescript', 'help' }, ensure_installed = {'lua', 'vim', 'help'},

[clason]

That's exactly what this PR does?

[tjdevries]

woops, just merged the other one -- didn't see this one. sorry clason!