refactoring

pubspec.lock

@@ -71,13 +71,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.4"
-  extra_pedantic:
-    dependency: transitive
-    description:
-      name: extra_pedantic
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.5.0"
   fake_async:
     dependency: transitive
     description:
@@ -212,20 +205,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  geodesy:
-    dependency: transitive
-    description:
-      name: geodesy
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "0.4.0-nullsafety.0"
-  geojson:
+  geojson_vi:
     dependency: "direct main"
     description:
-      name: geojson
+      name: geojson_vi
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.0.0"
+    version: "2.0.7"
   geolocator:
     dependency: "direct main"
     description:
@@ -268,13 +254,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.1.1"
-  geopoint:
-    dependency: transitive
-    description:
-      name: geopoint
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.0"
   get:
     dependency: "direct main"
     description:
@@ -373,13 +352,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.17.0"
-  iso:
-    dependency: transitive
-    description:
-      name: iso
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.0.0"
   js:
     dependency: transitive
     description:
@@ -581,13 +553,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.99"
-  slugify:
-    dependency: transitive
-    description:
-      name: slugify
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "2.0.0"
   source_span:
     dependency: transitive
     description: