refactor the code base by moving the logic into notifier place

Author: AdamMusa

example/lib/main.dart

@@ -7,7 +7,7 @@ void main() async {
   runApp(
     MaterialApp(
       debugShowCheckedModeBanner: false,
-      home: MainScreen(url: "http://172.20.10.12:3000/demo/native"),
+      home: MainScreen(url: "https://flutteronrails.com/demo/native"),
     ),
   );
 }

example/pubspec.lock

@@ -73,6 +73,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.5.0"
+  dio:
+    dependency: transitive
+    description:
+      name: dio
+      sha256: "253a18bbd4851fecba42f7343a1df3a9a4c1d31a2c1b37e221086b4fa8c8dbc9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.8.0+1"
+  dio_web_adapter:
+    dependency: transitive
+    description:
+      name: dio_web_adapter
+      sha256: "7586e476d70caecaf1686d21eee7247ea43ef5c345eab9e0cc3583ff13378d78"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
   fake_async:
     dependency: transitive
     description:
@@ -188,7 +204,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.0.6-alpha"
+    version: "0.0.7-alpha"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -207,6 +223,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "10.8.0"
+  freezed_annotation:
+    dependency: transitive
+    description:
+      name: freezed_annotation
+      sha256: c2e2d632dd9b8a2b7751117abcfc2b4888ecfe181bd9fca7170d9ef02e595fe2
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.4"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "178d74305e7866013777bab2c3d8726205dc5a4dd935297175b19a23a2e66571"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.1.2"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.9.0"
   leak_tracker:
     dependency: transitive
     description:
@@ -239,6 +279,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.1.1"
+  logger:
+    dependency: transitive
+    description:
+      name: logger
+      sha256: be4b23575aac7ebf01f225a241eb7f6b5641eeaf43c6a8613510fc2f8cf187d1
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.0"
   logging:
     dependency: transitive
     description:
@@ -396,6 +444,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "7.0.0"
+  stac:
+    dependency: transitive
+    description:
+      name: stac
+      sha256: "53f5ab2c45e093fc5178a51db5bb5ae9ae3fda64fc8a879c90e612ebc7fc6b32"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.10.0"
+  stac_framework:
+    dependency: transitive
+    description:
+      name: stac_framework
+      sha256: "58fb26982eaf83626eaaefd4db153306f4f198bb2c4a4d288d97705da4eadac0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.2.2"
   stack_trace:
     dependency: transitive
     description: