Add shortcut to manage app notifications

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsGeneralController.kt

@@ -1,6 +1,8 @@
 package eu.kanade.tachiyomi.ui.setting
 
+import android.content.Intent
 import android.os.Build
+import android.provider.Settings
 import androidx.biometric.BiometricManager
 import androidx.preference.PreferenceScreen
 import eu.kanade.tachiyomi.R
@@ -116,6 +118,17 @@ class SettingsGeneralController : SettingsController() {
             defaultValue = "1"
             summary = "%s"
         }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            preference {
+                titleRes = R.string.pref_manage_notifications
+                onClick {
+                    val intent = Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
+                        putExtra(Settings.EXTRA_APP_PACKAGE, context.packageName)
+                    }
+                    startActivity(intent)
+                }
+            }
+        }
 
         preferenceCategory {
             titleRes = R.string.pref_category_security

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

@@ -131,6 +131,7 @@
     <string name="pref_language">Language</string>
     <string name="system_default">System default</string>
     <string name="pref_date_format">Date format</string>
+    <string name="pref_manage_notifications">Manage notifications</string>
 
     <string name="pref_category_security">Security</string>
     <string name="lock_with_biometrics">Lock with biometrics</string>