Add speech recognition privacy description (#2310)

## Summary
In addition to microphone permission, this is required for speech
recognition in Assist.

## Screenshots
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## Link to pull request in Documentation repository
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corresponding pull request in the Companion App Documentation repository
(https://github.com/home-assistant/companion.home-assistant). Please add
the number of this pull request after the "#" -->
Documentation: home-assistant/companion.home-assistant#

## Any other notes
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Request is part of a bigger change, please include it here. -->

Sources/App/Resources/Info.plist

@@ -619,6 +619,8 @@
 	<string>We use Siri to allow created shortcuts to interact with the app.</string>
 	<key>NFCReaderUsageDescription</key>
 	<string>Reading and writing NFC tags allows you to trigger events.</string>
+	<key>NSSpeechRecognitionUsageDescription</key>
+	<string>Used to dictate text to Assist.</string>
 	<key>NSCameraUsageDescription</key>
 	<string>Take photos and send them to your Home Assistant server.</string>
 	<key>NSMicrophoneUsageDescription</key>

Sources/App/Resources/en.lproj/InfoPlist.strings

@@ -13,4 +13,5 @@
 "NSPhotoLibraryUsageDescription" = "Photo Library access is needed to allow saving photos from the web view.";
 "NSSiriUsageDescription" = "We use Siri to allow created shortcuts to interact with the app.";
 "SEND_LOCATION_APP_SHORTCUT_TITLE" = "Send Location";
-"TemporaryFullAccuracyReasonManualUpdate" = "Grant full accuracy to use your current location for your device tracker.";
+"TemporaryFullAccuracyReasonManualUpdate" = "Grant full accuracy to use your current location for your device tracker.";
+"NSSpeechRecognitionUsageDescription" = "Used to dictate text to Assist.";