Fix share sheet extension not working with Apple News

Closes #375

ShareExtension/Info.plist

@@ -8,6 +8,8 @@
 		<dict>
 			<key>NSExtensionActivationRule</key>
 			<dict>
+				<key>NSExtensionActivationSupportsText</key>
+				<true/>
 				<key>NSExtensionActivationSupportsImageWithMaxCount</key>
 				<integer>4</integer>
 				<key>NSExtensionActivationSupportsMovieWithMaxCount</key>

ShareExtension/ShareViewController.swift

@@ -71,36 +71,43 @@ class ShareViewController: UIViewController {
     
     private func getDraftConfigurationFromExtensionContext() async -> (String, [DraftAttachment]) {
         guard let extensionContext,
-              let inputItem = (extensionContext.inputItems as? [NSExtensionItem])?.first,
-              let itemProvider = inputItem.attachments?.first else {
+              let inputItem = (extensionContext.inputItems as? [NSExtensionItem])?.first else {
             return ("", [])
         }
-        if let url: NSURL = await getObject(from: itemProvider) {
-            if let title = inputItem.attributedTitle ?? inputItem.attributedContentText {
-                return ("\n\n\(title.string)\n\(url.absoluteString ?? "")", [])
-            } else {
-                return ("\n\n\(url.absoluteString ?? "")", [])
-            }
-        } else if let text: NSString = await getObject(from: itemProvider) {
-            return ("\n\n\(text)", [])
-        } else if let attributedContent = inputItem.attributedContentText {
-            return ("\n\n\(attributedContent.string)", [])
-        } else {
-            let attachments = await withTaskGroup(of: DraftAttachment?.self, returning: [DraftAttachment].self) { group in
-                for provider in inputItem.attachments! {
-                    group.addTask { @MainActor in
-                        await self.getObject(from: provider)
-                    }
+        var text: String = ""
+        var url: URL?
+        var attachments: [DraftAttachment] = []
+        
+        for itemProvider in inputItem.attachments ?? [] {
+            if let attached: NSURL = await getObject(from: itemProvider) {
+                if url == nil {
+                    url = attached as URL
                 }
-                
-                return await group.reduce(into: [], { partialResult, result in
-                    if let result {
-                        partialResult.append(result)
-                    }
-                })
+            } else if let s: NSString = await getObject(from: itemProvider) {
+                if text.isEmpty {
+                    text = s as String
+                }
+            } else if let attachment: DraftAttachment = await getObject(from: itemProvider) {
+                attachments.append(attachment)
             }
-            return ("", attachments)
         }
+        
+        if text.isEmpty,
+           let s = inputItem.attributedTitle ?? inputItem.attributedContentText {
+            text = s.string
+        }
+        
+        if let url {
+            if !text.isEmpty {
+                text += "\n"
+            }
+            text += url.absoluteString
+        }
+        
+        if !text.isEmpty {
+            text = "\n\n\(text)"
+        }
+        return (text, attachments)
     }
     
     private func getObject<T: NSItemProviderReading>(from itemProvider: NSItemProvider) async -> T? {