[DENG-2956][DENG-2894] Add Spain and Canada to public user activity report (#5212)

Author: BenWu

sql/moz-fx-data-shared-prod/telemetry_derived/public_data_report_user_activity_v1/metadata.yaml

@@ -1,6 +1,9 @@
 friendly_name: |-
-  Telemetry Derived - Public Data Report User Activity
+  Firefox Public Data Report User Activity
 description: |-
-  [DESCRIPTION_MISSING]
+  Data used to populate https://data.firefox.com/dashboard/user-activity.
+
+  Code to parse and format this data is in the
+  [firefox-public-data-report-etl repository](https://github.com/mozilla/firefox-public-data-report-etl/tree/main/public_data_report/user_activity).
 owners:
-- data-platform-infra-wg@mozilla.com
+- bewu@mozilla.com

sql/moz-fx-data-shared-prod/telemetry_derived/public_data_report_user_activity_v1/query.sql

@@ -29,6 +29,7 @@ sample AS (
     COALESCE(cn.name, country_group) IN (
       'Worldwide',
       'Brazil',
+      'Canada',
       'China',
       'France',
       'Germany',
@@ -37,6 +38,7 @@ sample AS (
       'Italy',
       'Poland',
       'Russia',
+      'Spain',
       'United States'
     )
     -- we need the whole week for daily_usage metric
@@ -63,7 +65,7 @@ sample_addons AS (
       IF(
         ARRAY_LENGTH(active_addons) > 0,
         active_addons,
-            -- include a null addon if there were none (either null or an empty list)
+        -- include a null addon if there were none (either null or an empty list)
         [active_addons[SAFE_OFFSET(0)]]
       )
     ) AS addons