Not translatable components names in dropdown of Activity admin area

[slaFFik]

On this page /wp-admin/admin.php?page=bp-activity there is a dropdown of all actions (see attached).
But because of this code (in BuddyPress 2.5.1):

// see: /plugins/buddypress/bp-activity/classes/class-bp-activity-list-table.php::423
<optgroup label="<?php echo ucfirst( $component ); ?>">

those section names are not translatable.

[slaFFik]

According to the way components are loading - all of them have a component name:

parent::start(
	'activity',
	__( 'Activity Streams', 'buddypress' ),
	buddypress()->plugin_dir,
	array(
		'adminbar_myaccount_order' => 10,
		'search_query_arg' => 'activity_search',
	)
);

So why not to use here those $name string?

[djpaul]

In 10961:

Activity: fix un-translatable strings in the wp-admin management screen.

Fixes #6964