API now requires minimum API version, not minimum server version

- A lot simpler to implement and undestand!

pubspec.lock

@@ -273,6 +273,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.6"
+  infinite_scroll_pagination:
+    dependency: "direct main"
+    description:
+      name: infinite_scroll_pagination
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.0"
   intl:
     dependency: "direct main"
     description:
@@ -488,6 +495,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.99"
+  sliver_tools:
+    dependency: transitive
+    description:
+      name: sliver_tools
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.10+1"
   source_span:
     dependency: transitive
     description: