Finalize switch to new iOS setup page (#12007)

Updates the formatting of the new `/platform-integration/ios/setup` page
to be consistent with the current state of the others. Then fully
replace the old page, removing them and adding redirects.

Contributes to #11911

**Staged:**
https://flutter-docs-prod--pr12007-feat-standardize-ios-setup-jxytw7k0.web.app/platform-integration/ios/setup

---------

Co-authored-by: Loïc Sharma <[email protected]>
Co-authored-by: Jenn Magder <[email protected]>

Author: 3 people

firebase.json

@@ -145,6 +145,8 @@
       { "source": "/platform-integration/android/splash-screen-migration", "destination": "/release/breaking-changes/splash-screen-migration", "type": 301 },
       { "source": "/platform-integration/c-interop", "destination": "/platform-integration", "type": 301 },
       { "source": "/platform-integration/ios-app-clip", "destination": "/platform-integration/ios/ios-app-clip", "type": 301 },
+      { "source": "/platform-integration/ios/install-ios", "destination": "/platform-integration/ios/setup", "type": 301 },
+      { "source": "/platform-integration/ios/install-ios/:rest*", "destination": "/platform-integration/ios/setup", "type": 301 },
       { "source": "/platform-integration/ios/splash-screen", "destination": "/platform-integration/ios/launch-screen", "type": 301 },
       { "source": "/platform-integration/linux/install-linux", "destination": "/platform-integration/linux/setup", "type": 301 },
       { "source": "/platform-integration/linux/install-linux/:rest*", "destination": "/platform-integration/linux/setup", "type": 301 },

src/_data/sidenav.yml

@@ -531,8 +531,8 @@
     - title: iOS
       permalink: /platform-integration/ios
       children:
-        - title: Add iOS as build target
-          permalink: /platform-integration/ios/install-ios
+        - title: Set up iOS development
+          permalink: /platform-integration/ios/setup
         - title: Flutter on latest iOS
           permalink: /platform-integration/ios/ios-latest
         - title: Leverage Apple's system libraries

src/_includes/docs/install/next-steps.md

@@ -28,7 +28,7 @@ consult the following resources.
 {%- endcase %}
 {%- case next-step.add-simulator %}
 {%- when 'Y' %}
-* [Add iOS simulator or device](/platform-integration/ios/install-ios/install-ios-from-{{mod-target}})
+* [Add iOS simulator or device](/platform-integration/ios/setup)
 {%- endcase %}
 {%- case next-step.add-xcode %}
 {%- when 'Y' %}

src/content/install/with-vs-code.md

@@ -247,7 +247,7 @@ the Flutter team recommends you first try out
           <a class="text-button" href="/platform-integration/android/setup">Target Android</a>
         </li>
         <li class="macos-only">
-          <a class="text-button" href="https://github.com/platform-integration/ios/install-ios">Target iOS</a>
+          <a class="text-button" href="https://github.com/platform-integration/ios/setup">Target iOS</a>
         </li>
         <li class="macos-only">
           <a class="text-button" href="/platform-integration/macos/setup">Target macOS</a>

src/content/platform-integration/android/setup.md

@@ -1,6 +1,5 @@
 ---
 title: Set up Android development
-short-title: Set up Android
 description: >-
   Configure your development environment to
   run, build, and deploy Flutter apps for Android devices.
@@ -13,7 +12,7 @@ to run, build, and deploy Flutter apps for Android devices.
 If you haven't set up Flutter already,
 visit and follow the [Get started with Flutter][] guide first.
 
-If you have already installed Flutter,
+If you've already installed Flutter,
 ensure that it's [up to date][].
 :::
 
@@ -342,6 +341,7 @@ run a Flutter app on a physical Android device, follow these steps:
 
 ## Start developing for Android {: #start-developing}
 
+Congratulations!
 Now that you've set up Android development for Flutter,
 you can continue your Flutter learning journey while testing on Android
 or begin improving integration with Android.