refs #5222 completely delete the Zeitgeist plugin
refs #5253 this might fix the database usage error. It definitely fixes nothing is displayed once you change a column in the graph charts since it does not support them. The summary configuration was never applied due to a typo.
refs #5212 improved left menu stylesheet which works better with Morpheus now, turned it into a plugin and made it configurable. not finished yet
refs #5212 added possibility to make a system setting readable for non super users
refs #5212 do not display the default value in case we handle radio fields
refs #5212 this *should* enable leftMenu plugin by default but it will be disabled. Need to test it
refs #5212 added some tests
refs #5212 should fix core tests
refs #5212 always add leftMenu css but apply it only if there is a class .leftMenuPlugin. Added an event to add classes to the body which I found quite useful already for a while
refs #5212 a few ui tweaks
refs #5212 css => less
refs #5212 translations
updated submodule
Merge branch 'master' into DeviceDetector2
updated composer.lock
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