apps-android-commons: Feedback about a Wikidata item: Does not exist, Is at other location, Etc

I suggest adding a “discussion” action to the bottom panel that opens when you select a pin in the “Nearby” activity:

It would open an activity that could look like this:

Write something about the "GS1 Japan" item. It will be publicly visible.
☐ "GS1 Japan" does not exist anymore, no picture can ever be taken of it.
☑ "GS1 Japan" is at a different place (please specify the correct place below, if possible tell us the correct latitude/longitude).
☐ Other problem or information (please explain below).
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| It has moved to across the street blabla.                  |
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                                                  |Send|
Current talk page:
blablabla
blablabla

The edit should be made with a particular edit tag, so that we can keep track of this feedback and impact the changes:

• Add the “closed” property to items that do not exist anymore
• Modify the latitude/longitude of items that are at a different place I volunteer to do that work, as I expect the workload to be bearable.

Implementing this would also solve issue #965.

Phase 2 (only after the feature above is implemented): Allow users to write a memo about the item even when offline. This would allow off-the-grid photographers with a DSLR to write down a picture filename, and later match it when they get back home.