Bind requestAnimationFrame to window

* Browser extensions in Firefox have a weird issue where functions that
are on the DOM or on window cannot be assigned to a variable without
being bound to the context they came from
* Related links:
** https://lwhorton.github.io/2018/10/20/clojurescript-interop-with-javascript.html#pitfalls
** https://github.com/bvaughn/react-virtualized/pull/1013/files
** Semantic-Org/Semantic-UI#3855

project.clj

@@ -1,4 +1,4 @@
-(defproject reagent "0.9.0-rc1"
+(defproject reagent "0.9.0-rc1-BINDFIX"
   :url "http://github.com/reagent-project/reagent"
   :license {:name "MIT"}
   :description "A simple ClojureScript interface to React"

src/reagent/impl/batching.cljs

@@ -16,12 +16,11 @@
 (def next-tick
   (if-not is-client
     fake-raf
-    (let [w js/window]
-      (or (.-requestAnimationFrame w)
-          (.-webkitRequestAnimationFrame w)
-          (.-mozRequestAnimationFrame w)
-          (.-msRequestAnimationFrame w)
-          fake-raf))))
+    (or (. (. js/window -requestAnimationFrame) bind js/window)
+          (. (. js/window -webkitRequestAnimationFrame) bind js/window)
+          (. (. js/window -mozRequestAnimationFrame) bind js/window)
+          (. (. js/window -msRequestAnimationFrame) bind js/window)
+          fake-raf)))
 
 (defn compare-mount-order
   [c1 c2]