Update crop border shortcut state when reading mode or manga set (fixes #6441)

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -441,6 +441,8 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
                     if (!preferences.showReadingMode()) {
                         menuToggleToast = toast(newReadingMode.stringRes)
                     }
+
+                    updateCropBordersShortcut()
                 }
             }
         }
@@ -615,6 +617,7 @@ class ReaderActivity : BaseRxActivity<ReaderActivityBinding, ReaderPresenter>()
 
         val newViewer = ReadingModeType.toViewer(presenter.getMangaReadingMode(), this)
 
+        updateCropBordersShortcut()
         setOrientation(presenter.getMangaOrientationType())
 
         // Destroy previous viewer if there was one