Improve nvim configs

.config/nvim/lua/utils.lua

@@ -0,0 +1,21 @@
+-- Check file extension and set syntax highlighting
+vim.cmd([[
+	augroup Jinja2Syntax
+	autocmd!
+	autocmd BufNewFile,BufRead *.j2 lua require('utils').set_jinja2_syntax()
+	augroup END
+]])
+
+-- Function to determine Jinja2 syntax highlighting
+local function set_jinja2_syntax()
+	local file_extension = vim.fn.expand("%:e")
+	if file_extension == "j2" then
+		local base_filename = vim.fn.expand("%:r")
+		local base_filetype = vim.fn.fnamemodify(base_filename, ":t")
+		vim.opt.syntax = base_filetype
+	end
+end
+
+return {
+	set_jinja2_syntax = set_jinja2_syntax
+}