chore: Clean init.lua

Why do we have a table to require a single module. We had this when we had plugins, colors etc. 
But we only have one module now. So why bother a list and looping through for a single module ?

init.lua

@@ -1,10 +1,4 @@
-local init_modules = {
-   "core",
-}
-
-for _, module in ipairs(init_modules) do
-   local ok, err = pcall(require, module)
-   if not ok then
+local ok, err = pcall(require, "core")
+if not ok then
 	error("Error loading " .. module .. "\n\n" .. err)
-   end
 end