Add ios directory to avoid build problems.

just_audio_web/ios/url_launcher_web.podspec

@@ -0,0 +1,20 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html
+#
+Pod::Spec.new do |s|
+  s.name             = 'just_audio_web'
+  s.version          = '0.0.1'
+  s.summary          = 'No-op implementation of just_audio_web web plugin to avoid build issues on iOS'
+  s.description      = <<-DESC
+temp fake just_audio_web plugin
+                       DESC
+  s.homepage         = 'https://github.com/ryanheise/just_audio/tree/master/just_audio_web'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.public_header_files = 'Classes/**/*.h'
+  s.dependency 'Flutter'
+
+  s.ios.deployment_target = '8.0'
+end