Minor fixes regarding leaks

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryController.kt

@@ -169,13 +169,13 @@ class LibraryController(
                 activeCategory = it
                 updateTitle()
             }
-            .launchIn(scope)
+            .launchIn(viewScope)
 
         getColumnsPreferenceForCurrentOrientation().asImmediateFlow { mangaPerRow = it }
             .drop(1)
             // Set again the adapter to recalculate the covers height
             .onEach { reattachAdapter() }
-            .launchIn(scope)
+            .launchIn(viewScope)
 
         if (selectedMangas.isNotEmpty()) {
             createActionModeIfNeeded()
@@ -197,7 +197,7 @@ class LibraryController(
                     GlobalSearchController(query).withFadeTransaction()
                 )
             }
-            .launchIn(scope)
+            .launchIn(viewScope)
 
         (activity!! as MainActivity).fixViewToBottom(binding.actionToolbar)
     }
@@ -212,6 +212,7 @@ class LibraryController(
 
     override fun onDestroyView(view: View) {
         destroyActionModeIfNeeded()
+        (activity!! as MainActivity).clearFixViewToBottom(binding.actionToolbar)
         binding.actionToolbar.destroy()
         adapter?.onDestroy()
         adapter = null
@@ -391,7 +392,7 @@ class LibraryController(
                 query = it.toString()
                 performSearch()
             }
-            .launchIn(scope)
+            .launchIn(viewScope)
     }
 
     private fun performSearch() {