[Notifications] Add a Mentions tab (#7044)

* Split out NotificationsTab

* Remove unused route parameter

* Refine the split between components

* Hoist some logic out of NotificationFeed

* Remove unused option

* Add all|conversations to query, hardcode "all"

* Add a Conversations tab

* Rename to Mentions

* Bump packages

* Rename fields

* Fix oopsie

* Simplify header

* Track active tab

* Fix types

* Separate logic for tabs

* Better border for first unread

* Highlight unread for all only

* Fix spinner races

* Fix fetchPage races

* Fix bottom bar border being obscured by glimmer

* Remember last tab within the session

* One tab at a time

* Fix TS

* Handle all RQKEY usages

* Nit

package.json

@@ -54,7 +54,7 @@
     "icons:optimize": "svgo -f ./assets/icons"
   },
   "dependencies": {
-    "@atproto/api": "^0.13.18",
+    "@atproto/api": "^0.13.20",
     "@bitdrift/react-native": "0.4.0",
     "@braintree/sanitize-url": "^6.0.2",
     "@discord/bottom-sheet": "bluesky-social/react-native-bottom-sheet",
@@ -206,7 +206,7 @@
     "zod": "^3.20.2"
   },
   "devDependencies": {
-    "@atproto/dev-env": "^0.3.64",
+    "@atproto/dev-env": "^0.3.67",
     "@babel/core": "^7.26.0",
     "@babel/preset-env": "^7.26.0",
     "@babel/runtime": "^7.26.0",