nvim: init: Override default grepprg

When setting grepprg to ripgrep, neovim passes -uuu which disables
ripgrep's default filtering which also ends up searching in binary
files which is not what we want. It also ignores our ripgreprc and
.ignore we have setup. neovim tries to match behaviour of standard
grep which we do not care about.

The default behaviour becomes a lot confusing when we start getting
results from clangd cache or search index.

nvim/.config/nvim/init.lua

@@ -35,6 +35,7 @@ vim.o.signcolumn     = "auto:1-2"
 vim.o.spelllang      = "en_gb"
 vim.o.spelloptions   = "camel,noplainbuffer"
 vim.o.spell          = true
+vim.o.grepprg        = "rg --vimgrep"
 
 -- Disable providers we do not give a shit about
 vim.g.loaded_python3_provider = 0