chore(android): adding non-null operator (#92)

Author: jerson

android/src/main/java/com/fastopenpgp/FastOpenpgpModule.kt

@@ -25,7 +25,7 @@ internal class FastOpenpgpModule(reactContext: ReactApplicationContext) :
  Thread {
  reactApplicationContext.runOnJSQueueThread {
  try {
- val contextHolder = this.reactApplicationContext.javaScriptContextHolder.get()
+ val contextHolder = this.reactApplicationContext.javaScriptContextHolder!!.get()
  if (contextHolder.toInt() == 0) {
  call(name, payload, promise)
  return@runOnJSQueueThread
@@ -67,7 +67,7 @@ internal class FastOpenpgpModule(reactContext: ReactApplicationContext) :
  reactApplicationContext.runOnJSQueueThread {
  Log.d(TAG, "installing")
  try {
- val contextHolder = this.reactApplicationContext.javaScriptContextHolder.get()
+ val contextHolder = this.reactApplicationContext.javaScriptContextHolder!!.get()
  if (contextHolder.toInt() == 0) {
  promise.resolve(false)
  return@runOnJSQueueThread