chore: update build configuration

- Remove 'minifyEnabled' setting from release build type in android/build.gradle
- Exclude javax.mail and javax.activation classes in proguard configuration
- Delete deprecated mail classes warning in proguard-rules.txt

Author: muzahidul-opti

android/build.gradle

@@ -56,13 +56,6 @@ android {
     packagingOptions {
         exclude 'androidsupportmultidexversion.txt'
     }
-
-    buildTypes {
-        release {
-            minifyEnabled false 
-        }
-    }
-
 }
 
 dependencies {

android/proguard-rules.txt

@@ -13,4 +13,9 @@
 # Logback
 -keep class ch.qos.** { *; }
 
+# Mail classes (Logback SMTP appender)
+-dontwarn javax.mail.**
+-dontwarn javax.mail.internet.**
+-dontwarn javax.activation.**
+
 ##---------------End: proguard configuration ----------

example/android/app/build.gradle

@@ -49,9 +49,6 @@ android {
         release {
             // TODO: Add your own signing config for the release build.
             // Signing with the debug keys for now, so `flutter run --release` works.
-            minifyEnabled true
-            shrinkResources true
-            proguardFiles 'proguard-rules.txt'
             signingConfig signingConfigs.debug
         }
     }