[Feature] Activity details

[sthewissen]

What

• [x] Tapping an item on the contributions list opens this page.
• [x] It contains a button to edit the activity ~if editing is still allowed~.
• [x] It contains a button to remove the activity ~if editing is still allowed~.
  • [x] Removing asks for confirmation.
• [x] It contains data about the activity depending on what we have available.
• [x] ~If a picture is available based on OpenGraph data it is shown~.
• [x] Info bubble when editing or deleting, if it's not allowed anymore.
• [x] URL box, clickable.

[sthewissen]

Ditching the image stuff for now and also will be showing the edit/remove parts for all activities always. There's no way to determine with 100% certainty if an activity can be removed or edited unless the API is changed.

[sthewissen]

Needs:

• Proper error popups when editing or deleting is not allowed anymore (goes wrong).