Fixes/location channels (#465)

* Remove "street" location channel; add coverage + names; style mesh

- Drop GeohashChannelLevel.street and update mappings/tests\n- Map geohash lengths >=8 to Block in teleport, no Street\n- Show ~distance coverage (mi/km via Locale.measurementSystem) next to each #geohash\n- Add reverse geocoding to display coarse names (country/region/city/neighborhood) per level\n- Style "#mesh" row title with toolbar blue\n- Fix iOS 16 deprecation: use Locale.measurementSystem

* Project: update Xcode project (auto)

* UI: use '~' without trailing space before location name in sheet

* Location sheet: poll for location at regular intervals while open (replace significant-move updates)

* UI: show Bluetooth range next to #bluetooth in location sheet

* UI: remove leading '#' from mesh title in location sheet

* UI: bold location name in sheet when geohash has >0 people; refactor row to render subtitle pieces

* UI: bold mesh/level titles when participant count > 0; factor meshCount()

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Co-authored-by: jack <jackjackbits@users.noreply.github.com>

bitchat/Nostr/NostrRelayManager.swift

@@ -28,6 +28,7 @@ class NostrRelayManager: ObservableObject {
     // Default relay list (can be customized)
     private static let defaultRelays = [
         "wss://relay.damus.io",
+        "wss://nos.lol",
         "wss://relay.primal.net",
         "wss://offchain.pub",
         "wss://nostr21.com"