Fixes

• #609

Changes

• Removed delete button for child elements, it's only available for parent elements now
• If the user would like to add a child expression from variables window or watch window to the Live Watch window, the element added to the Live Watch will include the parent as well.

Screenshots

Checklist

• 🤖 This change is covered by unit tests (if applicable).
• 🤹 Manual testing has been performed (if necessary).
• 🛡️ Security impacts have been considered (if relevant).
• 📖 Documentation updates are complete (if required).
• 🧠 Third-party dependencies and TPIP updated (if required).