Fix: Fixes Misspelling In Diagnostics Settings Check (#210)

This is a #PATCH fix release

Author: harrisoncramer

lua/gitlab/indicators/signs.lua

@@ -24,7 +24,7 @@ local severity_map = {
 ---@param diagnostics Diagnostic[]
 ---@param bufnr number
 M.set_signs = function(diagnostics, bufnr)
-  if not state.settings.discussion_sign.enabled then
+  if not state.settings.discussion_signs.enabled then
     return
   end