Prevent resetting finalized forms that modify entities

[seadowg]

Closes #6435

Why is this the best possible solution? Were any other approaches considered?

Not a lot to discuss here! I just piggy backed on the existing helpers added to determine whether a form can safely be deleted and added a new use case for resetting entities now the logic is more complex than just deleting everything.

How does this change affect users? Describe intentional changes to behavior and behavior that could have accidentally been affected by code changes. In other words, what are the regression risks?

Just affects the saved form reset flow.

Before submitting this PR, please make sure you have:

• added or modified tests for any new or changed behavior
• run ./gradlew connectedAndroidTest (or ./gradlew testLab) and confirmed all checks still pass
• added a comment above any new strings describing it for translators
• added any new strings with date formatting to DateFormatsTest
• verified that any code or assets from external sources are properly credited in comments and/or in the about file.
• verified that any new UI elements use theme colors. UI Components Style guidelines

[WKobus]

Tested with Success

Verified on device with Android 15

Verified cases:

• Issue Entities from finalized registration and update forms after resetting "saved forms and entities" #6435 does not occur
• Resetting drafts, finalized and sent forms
• Resetting entity and non-entity forms
• Form reset after an app upgrade

[dbemke]

Tested with Success

Verified on device with Android 10