Turn TranscribingLabel a self-containing component

react/features/transcribing/components/AbstractTranscribingLabel.js

@@ -5,8 +5,29 @@
  */
 export type Props = {
 
+    /**
+     * True if the label needs to be rendered, false otherwise.
+     */
+    _showLabel: boolean,
+
     /**
      * Invoked to obtain translated strings.
      */
     t: Function
 };
+
+/**
+ * Maps (parts of) the redux state to the associated props of the
+ * {@link AbstractTranscribingLabel} {@code Component}.
+ *
+ * @param {Object} state - The redux state.
+ * @private
+ * @returns {{
+ *     _showLabel: boolean
+ * }}
+ */
+export function _mapStateToProps(state: Object) {
+    return {
+        _showLabel: state['features/transcribing'].isTranscribing
+    };
+}