[Feature]: Highlight errors

[emocharnik]

Is your feature request related to a problem? Please describe.
When users trigger runs (e.g., plan, apply) from the Scalr VSCode extension, errors encountered during the execution are not highlighted in the source code. Users have to manually search for the lines that caused the issues, which is inefficient and error-prone.

Describe the solution you'd like
The Scalr VSCode extension should automatically highlight lines in the source code where errors occurred during a run (plan, apply, etc.). This would include inline error messages, making it easier for users to identify and correct issues without needing to cross-reference logs or manually track down the errors.

Describe alternatives you've considered

1. Users manually inspect the output log and then locate the corresponding code section, but this is time-consuming.
2. Rely on external linting or static analysis tools, though these do not provide real-time feedback specific to run errors.

Additional context
The error highlighting feature could integrate with existing error markers in VSCode and should support various Terraform files (.tf, .tfvars). Additionally, the extension could offer quick fixes or suggestions where applicable, streamlining the debugging process.

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