Version 1.1.0 release with Gradle build fix (#21)

## Summary
- Fix Gradle build error by reordering plugins block before
group/version properties
- Bump version to 1.1.0 across all platform files (pubspec.yaml,
build.gradle, podspec, version.dart)
- Add changelog entry documenting recent improvements

Author: mlaucis

CHANGELOG.md

@@ -1,3 +1,9 @@
+## 1.1.0
+
+-   Migrate Android Gradle config to plugins { } DSL using Flutter‑recommended approach
+-   Standardize payload schema
+-   Add PendingIntents and filter out non-notification intents
+
 ## 1.0.0
 
 -   Initial stable release of PNTA Flutter plugin.

android/build.gradle

@@ -1,10 +1,10 @@
-group = "io.pnta.pnta_flutter"
-version = "1.0.0"
-
 plugins {
     id "com.android.library"
     id "org.jetbrains.kotlin.android"
 }
+
+group = "io.pnta.pnta_flutter"
+version = "1.1.0"
 android {
 
     compileSdkVersion 34

ios/pnta_flutter.podspec

@@ -4,7 +4,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'pnta_flutter'
-  s.version          = '1.0.0'
+  s.version          = '1.1.0'
   s.summary          = 'Official PNTA Flutter plugin to make push notifications suck less.'
   s.description      = <<-DESC
 A Flutter plugin for requesting push notification permissions and identifying devices on iOS and Android. Integrates with PNTA backend for device registration and metadata collection.

lib/src/version.dart

@@ -1,3 +1,3 @@
 /// PNTA Flutter SDK version
 /// This should match the version in pubspec.yaml
-const String kPntaSdkVersion = '1.0.0';
+const String kPntaSdkVersion = '1.1.0';

pubspec.yaml

@@ -1,6 +1,6 @@
 name: pnta_flutter
 description: "Official PNTA Flutter plugin to make push notifications suck less."
-version: 1.0.0
+version: 1.1.0
 homepage: https://pnta.io
 repository: https://github.com/pnta-io/pnta-flutter-plugin
 documentation: https://docs.pnta.io