Regex support on workspace rules (config + cli)

[jonathanMelly]

Hello,

Thank you for sharing your work on komorebi ! I was disappointed by regex not working in workspace rule and not being available in cli... So with a little help from ai (I am a rust beginner but experienced developer) I can propose the patch that I am using now to have a working setup for my needs (split eM Client Calendar and mail windows to different workspaces with specific regex to avoid conflicts).

[LGUG2Z]

Hi and thanks for this contribution! There is currently a feature freeze on komorebi for Windows while I work on komorebi for Mac so that I can have a fixed target to implement - I will come back to this soon, but in the meantime if anyone wants to try this out and provide feedback, please add your thoughts here!