dufs 0.42.0

[BrewTestBot]

Created by brew bump

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Created with brew bump-formula-pr.

release notes

### Bug Fixes

Garbled characters caused by atob (#422)
Webui unexpected save-btn when file is non-editable (#429)
Login succeeded but popup Forbidden (#437)

Features

Implements remaining http cache conditionalss (#407)
Base64 index-data to avoid misencoding (#421)
Webui support logout (#439)

Refactor

No inline scripts in HTML (#391)
Return 400 for propfind request when depth is neither 0 nor 1 (#403)
Remove sabredav-partialupdate from DAV res header (#415)
Date formatting in cache tests (#428)
Some query params work as flag and must not accept a value (#431)
Improve logout at asserts/index.js (#440)
Make logout works on safari (#442)

[github-actions]

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