add ios PrivacyInfo

ios/PrivacyInfo.xcprivacy

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>NSPrivacyAccessedAPITypes</key>
+    <array>
+        <!-- [1] background_fetch: UserDefaults -->
+        <dict>
+            <key>NSPrivacyAccessedAPIType</key>
+            <string>NSPrivacyAccessedAPICategoryUserDefaults</string>
+
+            <key>NSPrivacyAccessedAPITypeReasons</key>
+            <array>
+                <string>CA92.1</string>
+            </array>
+        </dict>        
+    </array>
+</dict>
+</plist>

lib/ui/app.dart

@@ -180,7 +180,6 @@ class _CoagulateAppState extends State<CoagulateApp>
     WidgetsBinding.instance.addObserver(this);
 
     // Configure background fetch
-    // TODO: https://github.com/transistorsoft/flutter_background_fetch/blob/master/help/INSTALL-IOS.md
     BackgroundFetch.configure(
         BackgroundFetchConfig(
           minimumFetchInterval: 15,