Improve Decision Table Headers

[pinussilvestrus]

This issue acts as an epic for everything related to the new decision table header implementation.

Resources

• Concept
• Demo
• Miro Board

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Visuals

• Remove Decision Id Component (Remove decision id component from decision table #496)
• Overwork Hit Policy Design (Implement new hit policy design #497)
• Implement new Column-Adding functionality (Implement new ability to create columns to the right #498)
• Implement new Column Header Layout (Implement new column header design #499)
• Implement new Context Menu Layout for Column Headers (Implement new Context Menu Layout on Column Headers #495)

Editing Capabilities

• Implement new column header editing component (Implement new column header editing component #501)
• Table columns can be resized (Add ability to resize decision table columns #500)

Expression Language Support

not fully clarified yet

• We only support FEEL (and JUEL?) as column expression languages
• Other expression languages should be marked as deprecated
• There exists a migration path to transform unsupported expression languages

Possible Follow Up Topics

• Sticky Headers, Make decision table header / footer sticky #269

[pinussilvestrus]

Updated the Miro Board: https://miro.com/app/board/o9J_kuRBvoE=/

[barmac]

Done, as PR for the last feature is merged.