improvement(canvas): add multi-block select, add batch handle, enabled, and edge operations

[waleedlatif1]

Summary

• add multi-block select, add batch handle, enabled, and edge operations
• added the ability to shift-click multiple blocks to perform operations
• added batched socket operations
• updated styling on selected state to match blue color from globals css

Type of Change

• [x] New Feature

Testing

Tested manually

Checklist

• [x] Code follows project style guidelines
• [x] Self-reviewed my changes
• [ ] Tests added/updated and passing
• [x] No new warnings introduced
• [x] I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)