Update desktop_photo_search to use url_launcher's Link (#780)

experimental/desktop_photo_search/macos/Podfile.lock

@@ -4,36 +4,31 @@ PODS:
   - FlutterMacOS (1.0.0)
   - menubar (0.0.2):
     - FlutterMacOS
-  - url_launcher (0.0.1)
   - url_launcher_macos (0.0.1):
     - FlutterMacOS
 
 DEPENDENCIES:
   - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
-  - FlutterMacOS (from `Flutter/ephemeral/.symlinks/flutter/darwin-x64`)
+  - FlutterMacOS (from `Flutter/ephemeral`)
   - menubar (from `Flutter/ephemeral/.symlinks/plugins/menubar/macos`)
-  - url_launcher (from `Flutter/ephemeral/.symlinks/plugins/url_launcher/macos`)
   - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
 
 EXTERNAL SOURCES:
   file_selector_macos:
     :path: Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos
   FlutterMacOS:
-    :path: Flutter/ephemeral/.symlinks/flutter/darwin-x64
+    :path: Flutter/ephemeral
   menubar:
     :path: Flutter/ephemeral/.symlinks/plugins/menubar/macos
-  url_launcher:
-    :path: Flutter/ephemeral/.symlinks/plugins/url_launcher/macos
   url_launcher_macos:
     :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
 
 SPEC CHECKSUMS:
   file_selector_macos: ff6dc948d4ddd34e8602a1f60b7d0b4cc6051a47
-  FlutterMacOS: 15bea8a44d2fa024068daa0140371c020b4b6ff9
+  FlutterMacOS: 57701585bf7de1b3fc2bb61f6378d73bbdea8424
   menubar: 4e3d461d62d775540277ce6639acafe2a111a231
-  url_launcher: af78307ef9bafff91273b34f1c6c0c86a0004fd7
   url_launcher_macos: 45af3d61de06997666568a7149c1be98b41c95d4
 
-PODFILE CHECKSUM: d8ba9b3e9e93c62c74a660b46c6fcb09f03991a7
+PODFILE CHECKSUM: 6eac6b3292e5142cfc23bdeb71848a40ec51c14c
 
 COCOAPODS: 1.10.0