Workfiles tool: Fix task formatting

[iLLiCiTiT]

Issue

• workfiles tool can't find latest version because does not expect that templates from anatomy may contain {task} but should expect {task[name]}

Changes

• replace {task} with {task[name]} in loaded template

How to test

• open workfiles tool
• select context where already are some workfiles
• click of "Save as"
• write any comment to input and the version should be right (before created version 1)