Job and asset folders

[gnilrets]

I'm starting to have more jobs and asset groups and want to organize them further. It would be cool if I could name an asset group something like "snowpark/finance" or "snowpark/ops" and then in the UI "finance" and "ops" would show up in an expandable folder.

[yuhan]

We are actively working on improvements to job and asset grouping. Relevant issues:

• Asset Groups and Subgroups #11826
• Grouping jobs #6146
• Enable collapsing asset groups in the asset graph UI #14182

cc @braunjj