store vim version in global for v0.8 compatibility checks

so we dont have to run vim.version() function in many places of the config cuz we will be making nvchad 0.8 compatible too bit by bit

lua/core/options.lua

@@ -1,15 +1,15 @@
 local opt = vim.opt
 local g = vim.g
 local config = require("core.utils").load_config()
-local vim_version = vim.version()
 
+g.vim_version = vim.version().minor
 g.nvchad_theme = config.ui.theme
 g.toggle_theme_icon = "   "
 g.transparency = config.ui.transparency
 g.theme_switcher_loaded = false
 
 -- use filetype.lua instead of filetype.vim. it's enabled by default in neovim 0.8 (nightly)
-if vim_version.minor < 8 then
+if g.vim_version < 8 then
   g.did_load_filetypes = 0
   g.do_filetype_lua = 1
 end

lua/plugins/configs/lspconfig.lua

@@ -13,9 +13,7 @@ local utils = require "core.utils"
 -- export on_attach & capabilities for custom lspconfigs
 
 M.on_attach = function(client, bufnr)
-  local vim_version = vim.version()
-
-  if vim_version.minor > 7 then
+  if vim.g.vim_version > 7 then
     -- nightly
     client.server_capabilities.documentFormattingProvider = false
     client.server_capabilities.documentRangeFormattingProvider = false