v1.3.1-stable

What's Changed

• feat(filebrowser): load from extraEnv by @JanBenisek in #28
• Pass extra secrets as envvars. Resolves #23 by @yosuf in #27
• Upgrade to v1.3.1-stable by @yosuf in #29
• Improved readme and extra configuration examples by @yosuf

Full Changelog: 1.2.4-stable.1...1.3.1-stable