Add resident engagement level on Add Activity form

[brylie]

As a caregiver
I would like to know the engagement level of residents during activities in which they participate
so I can ensure that every activity is meaningful for each resident

We would like to add an "engagement level" metric for each resident who participates in an activity. The engagement level should be recorded at the same time as the activity. The Add Activity form should also remain fairly streamlined.

Example UI structure

Add activity

select resident(s)

Resident name	Engagement level
Resident A	⭐
Resident B	⭐⭐⭐
Resident C	⭐⭐

Example data model

We should aim to keep our data model somewhat relational, for a possible transition to a proper relational database. So, we can add a new table here for recording engagement level data with the following structure:

• residentId: the ID of a given resident (basically a ForeignKey)
• activityId: the ID of a specific activity (basically a ForeignKey)
• engagementLevel: a numeric value on the scale of 1-3

Configuration option

Since this is a new feature that may not be desirable to all institutions where GeriLife is deployed, administrator users should be able to deactivate the feature.

On the Settings dashboard, rename the "Activity Types" section to be "Activities". Add a new setting on the "Activities" settings page to allow the new "engagement level" feature to be enabled/disabled. When the "engagement level" feature is disabled, the "Add Activity" form should not show the "engagement level" stars but can use the new structure to avoid maintaining two templates.

[brylie]

We will put this idea on hold for now.