Add ability to view "Foreground Crash Free Session" and "Foreground Crash Free Users"

### Problem Statement

When creating a Widget, I can choose the "Releases" data set, but I cannot filter on Foreground Crash Free Users or Sessions. I'd like to filter on this as these are crashes that most likely affect my users experience of the app.

There is the option to filter on Foreground ANR users.

Google also prioritizes the option to view Foreground Crash Free Users.

### Solution Brainstorm

Add a function to support Foreground Crash Free Users or Sessions.

cc: @yuval-sentry

### Product Area

Dashboards

┆Issue is synchronized with this [Jira Improvement](https://getsentry.atlassian.net/browse/FEEDBACK-2212) by [Unito](https://www.unito.io)