[risk=no] Fix "Fitbit hear rate" typo (#4319)
[risk=no] Fix "Fitbit hear rate" typo (#4319)

* [risk=no] Fix "Fitbit hear rate" typo

* Update Fitbit Domain name

* Change fitbit activity to fitbit activity summary

Co-authored-by: Neha Saxena <8c8cacfb311f43c91d6dcc077ff195efb7f32fd7@broadinstitute.org>
all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench,all-of-us/workbench