[Logs Explorer] Remove Logs Explorer

[gbamparop]

📓 Summary

Once Discover has full awareness of different data types to offer a curated experience, we won't need anymore to differentiate it from the Logs Explorer using 2 different apps, Vanilla Discover and Logs Explorer.

✔️ Acceptance criteria

• The available tabs on the top navbar, currently "Discover" and "Logs Explorer", should be removed from every environment.
• Redirect deep links to discover
• Remove logs explorer links in other applications and change them to discover links
• Stretch (can be done in a follow-up): The code for Logs Explorer will be removed from Kibana

❓ Pending questions

• How should links to discover look in other applications?

[weltenwort]

This is blocked by the availability of a data source selector in Discover, which supports the features of the Logs Explorer data selector, right?

[gbamparop]

This issue should be the last item of the first phase for One Discover (MVP). Currently, the data source selector is part of that phase but there would be further discussions.