feat: Add ability to configure messaging channels for local notifications (#247)

Author: mahmoud-elmorabea

android/build.gradle

@@ -60,7 +60,7 @@ android {
 dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     // Customer.io SDK
-    def cioVersion = "4.6.3"
+    def cioVersion = "4.7.0"
     implementation "io.customer.android:datapipelines:$cioVersion"
     implementation "io.customer.android:messaging-push-fcm:$cioVersion"
     implementation "io.customer.android:messaging-in-app:$cioVersion"

apps/amiapp_flutter/android/app/src/main/AndroidManifest.xml

@@ -76,5 +76,18 @@
         <meta-data
             android:name="flutterEmbedding"
             android:value="2" />
+
+        <!-- These meta-data customizes CIO push notification messaging channel-->
+        <meta-data
+            android:name="io.customer.notification_channel_id"
+            android:value="custom_channel_flutter" />
+        <meta-data
+            android:name="io.customer.notification_channel_name"
+            android:value="CIO Test" />
+        <!-- This values corresponds to Android Notification Manager' importance
+             as described here: https://developer.android.com/develop/ui/views/notifications/channels#importance -->
+        <meta-data
+            android:name="io.customer.notification_channel_importance"
+            android:value="4" />
     </application>
 </manifest>

apps/amiapp_flutter/pubspec.lock

@@ -103,7 +103,7 @@ packages:
       path: "../.."
       relative: true
     source: path
-    version: "2.3.0"
+    version: "2.3.1"
   dbus:
     dependency: transitive
     description: