feat: add more accessibility labels

Adds more accessibility labels required for mobile automated testing.

react/features/toolbox/components/ToolbarButton.native.js

@@ -38,6 +38,8 @@ class ToolbarButton extends AbstractToolbarButton {
     _renderButton(children) {
         const props = {};
 
+        'accessibilityLabel' in this.props
+            && (props.accessibilityLabel = this.props.accessibilityLabel);
         'disabled' in this.props && (props.disabled = this.props.disabled);
         'onClick' in this.props && (props.onPress = this._onClick);
         'style' in this.props && (props.style = this.props.style);

react/features/toolbox/components/Toolbox.native.js

@@ -243,6 +243,7 @@ class Toolbox extends Component {
                     onClick = { this._onToggleAudio }
                     style = { audioButtonStyles.style } />
                 <ToolbarButton
+                    accessibilityLabel = 'Hangup'
                     iconName = 'hangup'
                     iconStyle = { styles.whitePrimaryToolbarButtonIcon }
                     onClick = { this.props._onHangup }