Fix Ghost Text and CodeLens issue in Jetbrains

[arafatkatze]

Linear Issue

Thanks to @pkukielka for debugging this

Problem

Codelens would remain stuck on screen after accepting edits through the chat section's show diff feature.

Solution

Modified the LensesService to properly handle editor invalidation by:

• Targeting the specific codelens that matches the file being updated instead of the file currently open in the editor
• Using getAllOpenEditors() to find the correct editor context
• Ensuring code vision providers are properly invalidated for the matching editor

Testing

Verified that:

• CodeLens clears properly after accepting edits through show diff
• The behavior in this video does NOT happen anymore

Test plan

Changelog

[arafatkatze]

NOTE: I don't know in general if we write/should write tests for this kind of stuff but am happy to do it.