Adds back button to the top of the Nav bar of the Thread view.

app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/AppTopBar.kt

@@ -178,6 +178,7 @@ private fun RenderTopRouteBar(
                     Route.Community.base -> CommunityTopBar(id, accountViewModel, nav, navPopBack)
                     Route.Hashtag.base -> HashTagTopBar(id, accountViewModel, navPopBack)
                     Route.Geohash.base -> GeoHashTopBar(id, accountViewModel, navPopBack)
+                    Route.Note.base -> ThreadTopBar(id, accountViewModel, navPopBack)
                     else -> MainTopBar(drawerState, accountViewModel, nav)
                 }
             } else {
@@ -187,6 +188,20 @@ private fun RenderTopRouteBar(
     }
 }
 
+@Composable
+private fun ThreadTopBar(
+    id: String,
+    accountViewModel: AccountViewModel,
+    navPopBack: () -> Unit
+) {
+    FlexibleTopBarWithBackButton(
+        title = {
+            Text(stringResource(id = R.string.thread_title))
+        },
+        popBack = navPopBack
+    )
+}
+
 @Composable
 private fun GeoHashTopBar(
     tag: String,

app/src/main/res/values/strings.xml

@@ -663,4 +663,5 @@
     </string>
 
     <string name="payment_required_title">Message from %1$s</string>
+    <string name="thread_title">Thread</string>
 </resources>