Add AnalyticsPrompt to SwiftUI target and replace old UIAlertController.

RiotSwiftUI/Modules/AnalyticsPrompt/View/AnalyticsPromptTermsText.swift

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+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+
+@available(iOS 14.0, *)
+/// The last line of text in the description with highlighting on the link string.
+struct AnalyticsPromptTermsText: View {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+    
+    @Environment(\.theme) private var theme
+    
+    // MARK: Public
+    
+    let promptType: AnalyticsPromptType
+    
+    // MARK: Views
+    
+    var body: some View {
+        let (start, link, end) = promptType.termsStrings
+        
+        Text(start)
+            + Text(link).foregroundColor(theme.colors.accent)
+            + Text(end)
+    }
+}