• Add a new filter to the /workspaces page table: "workspaces to be deleted within 2 weeks" and add a preset for this new filter Presets will be worked on separately in upcoming sprint
• Add a new preset, "failed workspaces" for existing filter: status: failed Presets will be worked on separately in upcoming sprint
• Hide behind feature flag created in workspace actions: add feature flag and entitlements feature #7354
• Add link to dismissible banner to the top of the /workspaces page: "You have workspaces that will be deleted soon. Use this filter to see them." or something similar

Background

Case: Workspace is failed but not stopped
Filter solution: use the existing filter for failed workspaces

Case: Workspace is inactive and scheduled for deletion within 2 weeks' time
Filter solution: add a new filter: 'workspaces to be deleted with 2 weeks"