re-organized the dir and divided the init.lua into smaller plugins files

lua/custom/plugins/indent.lua

@@ -0,0 +1,19 @@
+return {
+  -- Add indentation guides even on blank lines
+  'lukas-reineke/indent-blankline.nvim',
+  -- Enable `lukas-reineke/indent-blankline.nvim`
+  -- See `:help indent_blankline.txt`
+  main = "ibl",
+  opts = {
+    indent = {
+      --[[ highlight = highlight ]]
+      char = "┆",
+      smart_indent_cap = true,
+    },
+    whitespace = {
+      --[[ highlight = highlight, ]]
+      remove_blankline_trail = false,
+    },
+    scope = { enabled = true },
+  },
+}