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. <img width="965" alt="Screenshot 2024-06-28 at 10 50 13 AM" src="https://github.com/getsentry/sentry/assets/437176/7fb1b31e-3aee-434c-b44d-32f14875bd9a"> ### 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)