'Calendar update frequency' option in TvDB preferences causes 'Error 400 Bad Request'

[harshithmohan]

Setting the Calendar setting in TvDB preferences gives a 400 Bad Request error.
The calendar update frequency is an AniDB setting and not a TvDB setting. The TvDB setting is different.
The cause of the error is that the property name sent to the patch function is AniDB_Calendar_UpdateFrequency instead of UpdateFrequency

As you can see clearly, the property name is wrong.
https://github.com/ShokoAnime/ShokoServer-WebUI/blob/bcd163b6fb7264c985444e68d963dbdb8e791e33/src/core/reducers/settings/Server.js#L66-L72