fixed reloading plugin files and highlight after colorscheme

lua/config/theme.lua

@@ -0,0 +1,5 @@
+-- highlight extra white space with red
+vim.api.nvim_set_hl(0, 'ExtraWhitespace', { ctermbg = 'red', bg = '#ff8888' })
+vim.cmd [[match ExtraWhitespace /\s\+$/]]
+print("hello???")
+