Wd 15262 improve performance of metric page

Done

Added pagination when the weekly active devices metric is fetched and if the requested period is more than 3 months. If the requested period is less than 3 months data no pagination is applied.
if there are too much data (in that case more than 500 data (ie more than 500 version exists for the requested page)) data is down-sampled. LTTB algorithm is used to select the most meaningful points that represents the dataset for each page. This approach solved most of the "Bad Gateway" error when for example 2 years of data is tried to be fetched.
Separated the active latest devices metric endpoint from the weekly active devices end point to make pagination possible.

go to https://snapcraft-io-4863.demos.haus/
open a published snap's metric page (https://snapcraft-io-4863.demos.haus//metrics)
Verify the "Weekly active devices" metric is shown (chart and number)
Verify the "Territories" metrics are shown
Change the period filter to something long such as "5 years". (if the data set for the snap is large it might take some time)
Verify "Weekly active devices" chart is updated
Change the type filter
Verify "Weekly active devices" chart is updated
Open a snap that doesnt have any users (such as misk-test)
Verify "No data found" is shown for all of the metrics
Verify the filters are disabled
Verify an info bar is displayed