Minor edits

app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt

@@ -115,14 +115,14 @@ class WebViewActivity : BaseActivity<WebviewActivityBinding>() {
     }
 
     override fun onPrepareOptionsMenu(menu: Menu?): Boolean {
-        val backItem = binding.toolbar.menu.findItem(R.id.action_web_back)
-        val forwardItem = binding.toolbar.menu.findItem(R.id.action_web_forward)
+        val backItem = menu?.findItem(R.id.action_web_back)
+        val forwardItem = menu?.findItem(R.id.action_web_forward)
         backItem?.isEnabled = binding.webview.canGoBack()
         forwardItem?.isEnabled = binding.webview.canGoForward()
 
         val iconTintColor = getResourceColor(R.attr.colorOnPrimary)
         val translucentIconTintColor = ColorUtils.setAlphaComponent(iconTintColor, 127)
-        backItem.icon?.setTint(if (binding.webview.canGoBack()) iconTintColor else translucentIconTintColor)
+        backItem?.icon?.setTint(if (binding.webview.canGoBack()) iconTintColor else translucentIconTintColor)
         forwardItem?.icon?.setTint(if (binding.webview.canGoForward()) iconTintColor else translucentIconTintColor)
 
         return super.onPrepareOptionsMenu(menu)