Bug: Cross-chart references in "Go To References" - should be scoped per chart

[jadefr]

Expected Behavior

When using "Go To References" on a parameter in a helm chart's values.yaml, it should only show references within
the same chart directory.

Actual Behavior

When clicking "Go To References" on any parameter in a helm chart, the LSP returns references from other charts in
the workspace as well, creating cross-chart pollution in the results.

Steps to Reproduce

1. Create multiple helm charts in a workspace
2. Open any values.yaml file
3. Right-click on a parameter
4. Select "Go To References"
5. Observe that results include references from other charts in the workspace, not just the current chart

Example

In a charts folder containing both nginx and redis charts, when selecting a parameter in charts/redis/values.yaml, it gets references of charts/nginx

Environment

• helm-ls version: 1.5.1
• Editor: VS Code
• OS: Linux (Ubuntu)

Additional Context

Each helm chart should be treated as an isolated scope. References should respect chart boundaries and not leak across different chart directories.

[qvalentin]

This should be fixed once this TODO is looked into: https://github.com/mrjosh/helm-ls/blob/master/internal/handler/yaml_handler/references.go#L39

But it might required a larger change.