nvim: init: Enable spellsitter

Enable spell check globally and remove file type specific settings.
Use the new treesitter powered spellsitter.

nvim/.config/nvim/after/ftplugin/gitcommit.vim

@@ -1,4 +1,3 @@
-setlocal spell
 setlocal textwidth=72
 setlocal iskeyword+=-
 setlocal bufhidden=wipe

nvim/.config/nvim/after/ftplugin/markdown.vim

@@ -1,4 +1,3 @@
-setlocal spell
 setlocal textwidth=80
 
 autocmd! BufWritePost <buffer> :Vale

nvim/.config/nvim/after/ftplugin/text.vim

@@ -1,2 +1 @@
-setlocal spell
 setlocal textwidth=78

nvim/.config/nvim/init.lua

@@ -33,6 +33,8 @@ vim.o.scrolloff      = 999
 vim.o.formatoptions  = "crqn1j"
 vim.o.signcolumn     = "auto:1-2"
 vim.o.spelllang      = "en_gb"
+vim.o.spelloptions   = "camel,noplainbuffer"
+vim.o.spell          = true
 
 -- Disable providers we do not give a shit about
 vim.g.loaded_python3_provider = 0