feat(vim): add path completion to cmdline

This is actually quite nice. I use it all the time to be realy lazy and
type commands without capitalization.

site-modules/core/files/vim/plugin/completion.lua

@@ -90,3 +90,11 @@ cmp.setup({
     },
 })
 
+cmp.setup.cmdline(":", {
+  mapping = cmp.mapping.preset.cmdline(),
+  sources = cmp.config.sources({
+    { name = "path" },
+  }, {
+    { name = "cmdline" },
+  }),
+})