POCONC-213: Fix patient summary snapshots

This PR tweaks the stored procedure to get it to work within the constraints of other
modifications to the breast and cervical cancer screening procedures. More specifically, these
changes include:

- Renaming indicators:
 - `breast_exam_findings` to `breast_exam_findings_this_visit`. Also changes the way the value of
 this indicator is determined using a subtle hack (necessitated by a bug in the form's design where
 past_breast_exam_findings and breast_exam_findings_this_visit reuse the same concept ID).
 - `via_test_result` to `via_or_via_vili_test_result`. Also changes to the way the value of this indicator
 is determined. This changes are necessitated by earlier modifications to the cervical cancer screening form.

- Linting (sorry, not sorry).