New navigation model (#1)

* Flatten all routing into a single stack

* Replace router with custom implementation

* Add shell header and titles

* Add tab selector

* Add back/forward history menus on longpress

* Fix: don't modify state during render

* Add refresh() to navigation and reroute navigations to the current location to refresh instead of add to history

* Cache screens during navigation to maintain scroll position and improve load-time for renders

package.json

@@ -23,10 +23,6 @@
     "@gorhom/bottom-sheet": "^4",
     "@react-native-async-storage/async-storage": "^1.17.6",
     "@react-native-clipboard/clipboard": "^1.10.0",
-    "@react-navigation/bottom-tabs": "^6.3.1",
-    "@react-navigation/native": "^6.0.10",
-    "@react-navigation/native-stack": "^6.6.2",
-    "@react-navigation/stack": "^6.2.1",
     "@zxing/text-encoding": "^0.9.0",
     "base64-js": "^1.5.1",
     "lodash.omit": "^4.5.0",