fix(term): disable warning about missing glyphs in wezterm

In some of the github fonts there are some glyphs now supported, they
are mainly getting used as icons in the vim completion ui.

Now we are not getting any system messages for this it has become quite
annoying.

site-modules/core/files/wezterm.lua

@@ -39,6 +39,8 @@ return {
   -- window bars go to the edges of the terminal
   window_padding = { left = 0, right = 0, top = 0, bottom = 0 },
 
+  warn_about_missing_glyphs = false,
+
   keys = {
     -- Bind <CTRL-Backspace> to <CTRL-w> to `werase` in bash. This is to keep
     -- the terminal binding the same to delete a word. The default <CTRL-w> has