Lint fixes, likely no visible changes

app/src/main/java/eu/kanade/tachiyomi/ui/manga/track/TrackSearchAdapter.kt

@@ -37,7 +37,7 @@ class TrackSearchAdapter(context: Context) :
         } else {
             holder = v.tag as TrackSearchHolder
         }
-        holder.onSetValues(track)
+        holder.onSetValues(track!!)
         return v
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/migration/manga/design/PreMigrationController.kt

@@ -62,15 +62,15 @@ class PreMigrationController(bundle: Bundle? = null) : BaseController<PreMigrati
         ourAdapter.itemTouchHelperCallback = null // Reset adapter touch adapter to fix drag after rotation
         ourAdapter.isHandleDragEnabled = true
         dialog = null
-        val fabBaseMarginBottom = binding.fab?.marginBottom ?: 0
+        val fabBaseMarginBottom = binding.fab.marginBottom
         binding.recycler.doOnApplyWindowInsets { v, insets, padding ->
 
-            binding.fab?.updateLayoutParams<ViewGroup.MarginLayoutParams> {
+            binding.fab.updateLayoutParams<ViewGroup.MarginLayoutParams> {
                 bottomMargin = fabBaseMarginBottom + insets.systemWindowInsetBottom
             }
             // offset the recycler by the fab's inset + some inset on top
-            v.updatePaddingRelative(bottom = padding.bottom + (binding.fab?.marginBottom ?: 0) +
-                fabBaseMarginBottom + (binding.fab?.height ?: 0))
+            v.updatePaddingRelative(bottom = padding.bottom + (binding.fab.marginBottom) +
+                fabBaseMarginBottom + (binding.fab.height))
         }
 
         binding.fab.setOnClickListener {

app/src/main/java/eu/kanade/tachiyomi/ui/migration/manga/process/MigrationProcessAdapter.kt

@@ -84,7 +84,7 @@ class MigrationProcessAdapter(
     fun removeManga(position: Int) {
         val item = getItem(position) ?: return
         menuItemListener.removeManga(item)
-        item?.manga?.migrationJob?.cancel()
+        item.manga.migrationJob.cancel()
         removeItem(position)
         items = currentItems
         sourceFinished()