Add delq! and pushnew! macros

And move projectile configs to their respective modules (and out of
package configs).

modules/lang/javascript/config.el

@@ -23,6 +23,10 @@
     ;; Other
     :yield "import"))
 
+(after! projectile
+  (pushnew! projectile-project-root-files "package.json")
+  (pushnew! projectile-globally-ignored-directories "node_modules" "flow-typed"))
+
 
 ;;
 ;; Major modes
@@ -54,10 +58,6 @@
   (set-electric! 'js2-mode :chars '(?\} ?\) ?. ?:))
   (set-repl-handler! 'js2-mode #'+javascript/open-repl)
 
-  (after! projectile
-    (add-to-list 'projectile-project-root-files "package.json")
-    (add-to-list 'projectile-globally-ignored-directories "node_modules"))
-
   (map! :map js2-mode-map
         :localleader
         "S" #'+javascript/skewer-this-buffer))