Groovy highlight regex fix + types

[krystian-panek-vmltech]

fixes #289

[krystian-panek-vmltech]

future hook

[Copilot]

Pull request overview

This pull request improves Groovy syntax highlighting in the Monaco editor by adding support for Groovy's slashy string (regex literal) syntax and introducing a custom theme system. It addresses Monaco editor configuration for Groovy language features that differ from Java, particularly string handling and regex literals.

Changes:

• Added custom theme registration with 'acm-dark' theme ID that extends 'vs-dark'
• Enhanced Groovy syntax highlighting with slashy string regex detection and improved rule ordering
• Reorganized tokenizer rules to prioritize Groovy-specific patterns over inherited Java patterns

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
ui.frontend/src/utils/monaco/theme.ts	Introduces registerTheme function and changes DEFAULT_THEME_ID from 'vs-dark' to 'acm-dark' for custom theme support
ui.frontend/src/utils/monaco/groovy/syntax.ts	Adds slashy string regex detection, reorganizes tokenizer rules to prioritize Groovy patterns, and adds comprehensive inline comments
ui.frontend/src/components/CodeEditor.tsx	Registers the custom theme before language-specific configurations

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