renterd health updates, stats, directory delete

[alexfreska]

• The files health feature has been refined to be more accurate and clear and now includes a global health value in the stats bar. File health view renterd#492
• File health is now based on the new health values returned by the API.
• Improved the file data size statistic and the detailed breakdown in its tooltip.
• Fixed an issue where the file health and slab health breakdown was incorrectly reporting everything as 0. File health view renterd#492
• The files explorer no longer makes a metadata request for every file in the list. Opening large directories in the webui takes a while. renterd#411
• Entire directories can now be deleted from the directory context menu. Ability to delete entire directories from the UI renterd#458

[changeset-bot]

🦋 Changeset detected

Latest commit: 9e081a6

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
website	Minor
renterd	Minor
@siafoundation/react-renterd	Minor

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[peterjan]

@alexfreska can we close out SiaFoundation/renterd#503 if this gets merged?

[alexfreska]

@peterjan The fix for that was already merged #338, I just need to make a release and bump the UI package in renterd. To do that I need to merge the release PR: #339 - you can see all the staged renterd changes in the description.

[peterjan]

@peterjan The fix for that was already merged #338, I just need to make a release and bump the UI package in renterd. To do that I need to merge the release PR: #339 - you can see all the staged renterd changes in the description.

good stuff thanks!