Delete sighting

[sandreae]

• delete sighting with new popup button on sighting screen
• confirm action
• navigate back to all sightings after deletion
• show message in snackbar
• Make sure that all sightings list is refreshed

[adzialocha]

Do you mind me having a go on the position and design of the button? It might be too prominent and too kind looking for a destructive action?

[sandreae]

Do you mind me having a go on the position and design of the button? It might be too prominent and too kind looking for a destructive action?

Please do! (I was hoping someone would 😏 )

[adzialocha]

I've did a couple of changes:

1. The sighting view can be opened from the "Species Profile" view and from the "All Sightings" view, to account for both cases and keep the history intact (use the system back-button to test) I've changed the router to pop from the stack instead
2. Added logic to refresh widgets when returning from deletion
3. Replaced button with a "more" menu in top right corner of app bar
4. Changed labels in dialog to "Cancel" and "Delete" to make actions more clear

Also delete all associated uses and location documents

Continued here: #108

[sandreae]

Good spot with the navigation changes w/ refreshing, definitely less tempting to delete sightings with the dropdown menu now.