[Feature] [Studio] Add advanced resume sections, theme customization, and toolbar actions

[Gautam25Raj]

Summary

This PR expands the resume editor with new professional resume sections, advanced theme customization controls, improved toolbar workflows, and enhanced document management functionality.

The update also improves section visibility handling, resume state management, and testing coverage across the workspace system.

Features

New Resume Sections

• Added ProjectsSection with project detail management and validation
• Added PublicationsSection with publication entry support and add/remove actions
• Added ReferencesSection for managing reference details
• Added SkillsSection with grouped skill keyword management
• Added SummarySection for professional summary content
• Added VolunteerSection for volunteer experience management

Section Architecture

• Added dedicated section types for improved type management
• Improved section consistency and scalability across the editor
• Enhanced section rendering and data organization

Theme & Customization

Theme Settings

• Enhanced theme settings with advanced customization support
• Added improved styling and appearance configuration controls
• Expanded customization flexibility for resume rendering

Section Visibility

• Added section visibility settings for managing displayed sections
• Improved control over resume content presentation
• Enhanced editor customization workflows

Settings Controls

• Added new setting controls for theme customization
• Improved settings organization and interaction handling

Toolbar & Document Actions

Toolbar Enhancements

• Added secondary toolbar actions for:
  • Document preview
  • Save workflows
• Improved editor interaction and document management experience

Download Support

• Added resume download functionality for multiple formats
• Improved export workflow consistency and accessibility

Improvements

Resume Store

• Updated resume store to support full removal of:
  • Education entries
  • Skill entries
• Improved data handling consistency and state management

Testing

• Added tests for:
  • Document workspace service
  • Resume store functionality
• Improved reliability and maintainability across editor workflows

Beta Status

✅ Stability Improvements

• Resume editor workflows are more complete and feature-rich
• Theme customization and section handling have been expanded significantly
• Additional stabilization and UX refinement work is still expected

Notes

• Beta-stage feature release
• Focused on resume editor expansion, customization, and document workflow improvements
• Additional editor refinements expected in future beta releases

Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📝 Documentation update
• 🧪 Tests (adding or updating tests)

Checklist

• I have read the CONTRIBUTING.md document.
• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.
• Any dependent changes have been merged and published in downstream modules.