feat(audoedit): add the accept command callback

[valerybugakov]

• Adds a callback command to inline completion items used to render autoedit suggestions, triggering our acceptance logic needed to send accepted and suggested telemetry events.
• Prevents inline completion item suggestions from being marked as rejected on acceptance, addressing issues caused by document change event listeners. When a completion item is accepted, the document changes before the acceptance command callback is triggered, which our autoedits renderer manager logic now handles properly.

Test plan

• CI
• Manually verify that accepting autoedit suggestions rendered as inline completion items triggers the accepted analytics event. The analytics events written through the telemetry logger can be found in the autoedits output channel.

• I asked @umpox to help with E2E tests for the analytics logger and different types of autoedits (inline completions vs. decorations).
• I'll implement integration tests for this change in a follow-up.

[valerybugakov]

Removed because it's identical to the default renderer.

[valerybugakov]

We don't use this.activeRequests for caching; having them around for debugging is helpful. We can change this behavior later if necessary. For now, the LRU cache size limit will ensure that stale requests are deleted.