chore(deps): upgrade Flutter SDK from 3.10.1 to 3.27.1

- Update Flutter SDK version to 3.27.1
- Update minimum dart SDK version
- Update dependencies to compatible versions
- Fix deprecated method calls
- Run migration for breaking changes

android/build.gradle

@@ -9,7 +9,7 @@ buildscript {
         // START: FlutterFire Configuration
         classpath 'com.google.gms:google-services:4.3.15'
         // END: FlutterFire Configuration
-        classpath 'com.android.tools.build:gradle:7.3.1'
+        classpath 'com.android.tools.build:gradle:8.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -19,6 +19,17 @@ allprojects {
         google()
         mavenCentral()
     }
+    subprojects {
+        afterEvaluate { project ->
+            if (project.hasProperty('android')) {
+                project.android {
+                    if (namespace == null) {
+                        namespace project.group
+                    }
+                }
+            }
+        }
+    }
 }
 
 rootProject.buildDir = '../build'