t: xmlui: fix request interval to meet policy requirements
t: xmlui: fix request interval to meet policy requirements

When the sensor history policy are made stricter, accessing data from
last 2 days with aggregation interval of 5 seconds would not be allowed.
Increase the interval to 300 seconds (5 minutes). The result is same
because the data for that sensor are generated every 720 seconds.

Signed-off-by: Jan Viktorin <3eab6ac54c005c4408f608556a6663b7f2abede7@fit.vutbr.cz>

BeeeOn/server,BeeeOn/server,BeeeOn/server,BeeeOn/server