Increment version to 1.3.0, updating versionCode to 5 and versionName in build.gradle.kts for the next release.

app/build.gradle.kts

@@ -15,8 +15,8 @@ android {
         applicationId = "com.codeskraps.publicpool"
         minSdk = 26
         targetSdk = 35
-        versionCode = 4
-        versionName = "1.2.1"
+        versionCode = 5
+        versionName = "1.3.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {