* fix: #7038, autoLocale logic not playing nicely with no-refresh auths
- on login, req.query.lang is deleted (since it seems to be left over)
- on logout, the middleware.autoLocale is executed, which resets
req.query.lang
- middleware.autoLocale is new, just refactored existing logic in
webserver.js into new middleware method.
* style: tests, use lodash
* fix: timeago strings not switching languages on login or out
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Peter Jaszkowiak
Julian Lam
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