Fix missing localization of "Message" field in Cloud > Try text-to-speech dialog (#23422)

* Add missing "Message" string for cloud tts dialog to en.json

The field label for the Message field in the Cloud > Try text-to-speech dialog is missing localization.

This commit adds the necessary localizable string.

* Update dialog-cloud-tts-try.ts to include localizable string

src/panels/config/cloud/account/dialog-cloud-tts-try.ts

@@ -75,7 +75,9 @@ export class DialogTryTts extends LitElement {
           <ha-textarea
             autogrow
             id="message"
-            label="Message"
+            .label=${this.hass.localize(
+              "ui.panel.config.cloud.account.tts.dialog.message"
+            )}
             .value=${this._message ||
             this.hass.localize(
               "ui.panel.config.cloud.account.tts.dialog.example_message",

src/translations/en.json

@@ -4118,6 +4118,7 @@
               "try": "Try",
               "dialog": {
                 "header": "Try text-to-speech",
+                "message": "Message",
                 "example_message": "Hello {name}, you can play any text on any supported media player!",
                 "target": "Target",
                 "target_browser": "Browser",