feat: Use Android system accent color

pubspec.lock

@@ -15,13 +15,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.6.1"
-  adaptive_theme:
-    dependency: "direct main"
-    description:
-      name: adaptive_theme
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "3.0.0"
   analyzer:
     dependency: transitive
     description:
@@ -323,13 +316,6 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.2.1"
-  dynamic_color:
-    dependency: "direct main"
-    description:
-      name: dynamic_color
-      url: "https://pub.dartlang.org"
-    source: hosted
-    version: "1.2.2"
   email_validator:
     dependency: "direct main"
     description:
@@ -1591,6 +1577,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.0.0+2"
+  system_theme:
+    dependency: "direct main"
+    description:
+      name: system_theme
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  system_theme_web:
+    dependency: transitive
+    description:
+      name: system_theme_web
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.0.2"
   term_glyph:
     dependency: transitive
     description: