UI: Make logs searchable

[cscetbon]

Summary

When looking at a workflow, we often need to check its logs and look through them. Unfortunately, the way they're displayed in the browser doesn't make them searchable using the search function or browsers like Safari or Chrome. We end up with copy/pasting logs to another place and search through them and it's overcomplex.
There should be a way to look through logs without such a complexity.

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[alexec]

This seems like a good idea.

[alexec]

I'm pondering two options here:

1. Provide a way to filter entries returned, i.e. only show lines with the search term.
2. Provide a way to jump to the lines with the search term.

What do you want?

[alexec]

[cscetbon]

Thanks @alexec, you're fast !