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

Fix bugs to ensure the experience work as expected (fixed 3/25/2024):

• 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)
• Figure out android app configuration to ensure only obs links open in app all NWAC links taking me to the app #826

[yuliadub]

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

[kevinherdez]

We're thinking about sending turning this on in Prod even if it only supports NWAC. I just tested both on iOS and Android and all of the above fixes are in.

The only thing that's missing is showing the AC logo where the share button is, if the default center is different. Given that it'll only support NWAC and NWAC is pretty isolated from the other ACs, I think it's okay to not support that right now. There is a chance that it could cause confusion in some cases, but for most users it should add a lot of value to the app. Showing the logo in the app will be more important with the map project as it'll be easier to switch between the centers