Selected items element in Notifications is not cleaned when switching between lists

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.0 DXP FP30, 7.0.X EE, 7.0.4 CE GA5, 7.1.X, Master
• Component/s: Collaboration
• Labels:
  • liferay-digital-enterprise-70-sp5
  • liferay-fixpack-de-30-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 3
• Epic Link: Notification & Requests Improvements
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/50859

Description: 
The Items Selected counter element in Notifications is not cleaned when switching between tabs. This element shows the total items selected in both lists (Notifications and Requests)

Steps to Reproduce: 
In a Liferay portal with previously generated notifications and requests:
1. Go to Notifications > Notifications List.
2. Select X notification items.
3. Select Request List

Expected: 0 items selected counter element in management bar.
Actual: X items selected counter element in management bar.