Simplify BatchStartProcessing function method.

[superhindupur]

Purpose

The BatchStartProcessing function API was only ever being called with process_all=true, so I simplified it. This reduced further code from the Ingest page in the Admin app.

Does this introduce a breaking change?

[ ] Yes
[x] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[x] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

Deploy the admin web, the function app and test whether "Reprocess all documents..." button works.

[github-actions[bot]]

Coverage Report •

File	Stmts	Miss	Cover	Missing
code/backend/batch
BatchStartProcessing.py	18	0	100%
code/backend/pages
01_Ingest_Data.py	118	118	0%	1–12, 18–22, 24–26, 28, 34, 41, 44, 48–49, 51, 56, 59–60, 63–66, 68–71, 75–77, 80–83, 85, 88–98, 101–108, 111–113, 115, 118, 120–123, 128–133, 136, 139–140, 143, 149, 162–165, 168–169, 173, 177, 184, 198–201, 204, 209–210, 212–213, 215–217, 221–223, 228–231, 238–239, 244, 246–247
TOTAL	2103	835	60%

Tests	Skipped	Failures	Errors	Time
129	0 :zzz:	0 :x:	0 :fire:	7.604s :stopwatch: