Global code search
We discussed it with @sytses and @dzaporozhets a few months ago but I couldn't find an issue so I created it. It can be implemented using ES only.
/cc @JobV @balameb
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Edit:
**UI changes**
- A new tab in the Search results view after searching through `/`.
- Display the complete path of the file, as shown below (*quick wireframe ahead*):

issue