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/AndroidManifest.xml

@@ -98,7 +98,7 @@
             android:theme="@style/TuskyDialogActivityTheme"
             android:windowSoftInputMode="stateVisible|adjustResize" />
         <activity
-            android:name=".ViewThreadActivity"
+            android:name=".components.viewthread.ViewThreadActivity"
             android:configChanges="orientation|screenSize" />
         <activity
             android:name=".ViewMediaActivity"