Improve Log Output view in autoindexing for precise code intel

[mike-r-mclaughlin]

Requested by: https://github.com/sourcegraph/accounts/issues/6938

Feature request description

When investigating a problem with precise code intel indexing, it is very difficult to read the log output from the index job. A few things would help (in order of priority):

• a "copy to clipboard" button so you can copy the output to an editor of your choice
• a vertical scrollbar
• parse the common log formats (like maven, etc.) so errors/warnings are highlighted in a different color

Is your feature request related to a problem? If so, please describe.

Troubleshooting precise code intel indexing jobs is challenging especially with large output