Add performance analytics user tracking

What does this MR do and why?

Add user track for performance analytics #1447 (comment 1197733):

Category	Action	Data
projects:analytics:performance_analytics:index	page_fetch	null
projects:analytics:performance_analytics:index	click_button	{label: 'download_csv_button'}
projects:analytics:performance_analytics:index	switch_project
projects:analytics:performance_analytics:index	click_dropdown	{label: 'switch_branch'}
projects:analytics:performance_analytics:index	click_dropdown	{label: 'switch_project'}
projects:analytics:performance_analytics:index	click_dropdown	{label: 'switch_leaderboard_type',value: type}

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Closes #1447 (closed)