Rename "Invited" to "Pending invitations" on membership screens

Problem to solve

One of the improvements to the source column introduced in #431066 (closed) includes using the terminology "Invited by" to indicate the source of a users membership. There is potential confusion with tab named "Invited" that is meant to indicate invitations that are in progress or not yet accepted.

Proposal

Rename "Invited" tab to "Pending invitations" to avoid confusion and add additional clarity to the intent of the tab.

• Update Group members page
• Update Project members page