[Feature] Customizable Line Labels for Projects and Tasks

[rickyweb]

Summary: In the GANTT view, enhance user flexibility by allowing customization of line labels. Currently limited to Project/Task, Start Date, and Duration, the ability to add, rearrange, and adjust the width of fields from both projects and tasks would significantly improve user experience and cater to individual workflow preferences. Examples for interesting fields to add would be project/task type, project priority, etc…

Details:

1. Add Fields:
   • Enable users to add fields from both projects and tasks to the line labels in the GANTT view.
2. Field Order and Width:
   • Provide the option to rearrange the order of fields to accommodate individual preferences.
   • Allow users to adjust the width of each field for optimal visibility and information presentation.