rewrite threads with Kotlin & coroutines (#2617)

* initial class setup

* handle events and filters

* handle status state changes

* code formatting

* fix status filtering

* cleanup code a bit

* implement removeAllByAccountId

* move toolbar into fragment, implement menu

* error and load state handling

* fix pull to refresh

* implement reveal button

* use requireContext() instead of context!!

* jump to detailed status

* add ViewThreadViewModelTest

* fix ktlint

* small code improvements (thx charlag)

* add testcase for toggleRevealButton

* add more state change testcases to ViewThreadViewModel

app/src/main/java/com/keylesspalace/tusky/util/ViewDataUtils.kt

@@ -25,13 +25,15 @@ import com.keylesspalace.tusky.viewdata.StatusViewData
 fun Status.toViewData(
     isShowingContent: Boolean,
     isExpanded: Boolean,
-    isCollapsed: Boolean
+    isCollapsed: Boolean,
+    isDetailed: Boolean = false
 ): StatusViewData.Concrete {
     return StatusViewData.Concrete(
         status = this,
         isShowingContent = isShowingContent,
         isCollapsed = isCollapsed,
         isExpanded = isExpanded,
+        isDetailed = isDetailed
     )
 }