[Bug] Crash when Sharing (anywhere)

[sblatz]

This also just happens any time I try to share anywhere in the app (Home fragment -> share tabs is the easiest way to reproduce).

Steps to reproduce

1. Open "Your Library"
2. Open "History"
3. Long press to share
4. Press share icon

Expected behavior

Able to share my link

Actual behavior

App crashes.

Perhaps something to do with 8cd1a0c

cc: @NotWoods

Stacktrace

2019-07-01 14:57:11.349 4861-4861/org.mozilla.fenix.debug E/AndroidRuntime: FATAL EXCEPTION: main
    Process: org.mozilla.fenix.debug, PID: 4861
    kotlin.UninitializedPropertyAccessException: lateinit property adapterJob has not been initialized
        at org.mozilla.fenix.utils.AdapterWithJob.getAdapterJob(AdapterWithJob.kt:17)
        at org.mozilla.fenix.share.AppShareAdapter.getCoroutineContext(AppShareView.kt:46)
        at kotlinx.coroutines.CoroutineContextKt.newCoroutineContext(CoroutineContext.kt:57)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch(Builders.common.kt:50)
        at kotlinx.coroutines.BuildersKt.launch(Unknown Source:1)
        at kotlinx.coroutines.BuildersKt__Builders_commonKt.launch$default(Builders.common.kt:47)
        at kotlinx.coroutines.BuildersKt.launch$default(Unknown Source:1)
        at org.mozilla.fenix.share.AppShareAdapter.<init>(AppShareView.kt:56)
        at org.mozilla.fenix.share.AppShareAdapter.<init>(AppShareView.kt:42)
        at org.mozilla.fenix.share.ShareUIView.<init>(ShareUIView.kt:33)
        at org.mozilla.fenix.share.ShareComponent.initView(ShareComponent.kt:40)
        at org.mozilla.fenix.share.ShareComponent.initView(ShareComponent.kt:31)
        at org.mozilla.fenix.mvi.UIComponent$uiView$2.invoke(UIComponent.kt:31)
        at org.mozilla.fenix.mvi.UIComponent$uiView$2.invoke(UIComponent.kt:26)
        at kotlin.SynchronizedLazyImpl.getValue(LazyJVM.kt:74)
        at org.mozilla.fenix.mvi.UIComponent.getUiView(Unknown Source:25)
        at org.mozilla.fenix.mvi.UIComponent.bind(UIComponent.kt:46)
        at org.mozilla.fenix.share.ShareComponent.<init>(ShareComponent.kt:43)
        at org.mozilla.fenix.share.ShareFragment.onCreateView(ShareFragment.kt:50)
        at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2595)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:880)
        at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1237)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1302)
        at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:439)
        at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2075)
        at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1865)
        at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1820)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1726)
        at androidx.fragment.app.FragmentManagerImpl$2.run(FragmentManagerImpl.java:150)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:6981)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1445)

┆Issue is synchronized with this Jira Task

[lobontiumira]

Verified that the app doesn't crash when share-ing from History.
Tested with the latest build 1.0.1926 (#11790618) with HTC Desire 820 (Android 6.0.1), Google Pixel (Android Q), and Motorola Moto G6 (Android 8).