Enable Sharing link to open within the production avy app instead of mobile browser

[yuliadub]

We current have this working inside the test Avy app. To make this work on the production app we need to do a few things:
Update asset links for nwac.us to contain prod Avy app #810
Replace logo with Share button #812
Figure out android app configuration to ensure only obs links open in app #826

Fix bugs to ensure the experience work as expected:

• support both link formats with and without the "view" part, i.e. https://nwac.us/observations/#/view/observations/5802d4f1-1478-4065-92f8-0b15d03d4eba and and https://nwac.us/observations/#/observation/5802d4f1-1478-4065-92f8-0b15d03d4eba
• ensure the main observation list link takes you to the list of observations (today it just takes you to the map) (ie https://nwac.us/observations/#/view/observations open obs list in app)

[yuliadub]

Some work that was started to have all links to open in the app: #818