reorganize CHANGELOG by category

I think any empty categories should be deleted at release time.

These are based on whats at https://keepachangelog.com/en/1.1.0/,
because that's what was mentioned on the technical steering call, but I
don't have strong feelings about this

CHANGELOG.md

@@ -1,12 +1,15 @@
 # Changes to the Mapbox Navigation SDK for iOS
 
 ## Unreleased
+
+### Added
+
 * Start & Stop Navigation in existing Map
     - Removed: `NavigationViewController(for route: Route, dayStyle: Style, routeController: RouteController? = nil, locationManager: NavigationLocationManager? = nil, voiceController: RouteVoiceController? = nil)` use `NavigationViewController(dayStyleURL: URL, nightStyleURL: URL? = nil,directions: Directions = .shared, voiceController: RouteVoiceController = RouteVoiceController())` followed by `startNavigation(with route: Route, animated: Bool)` instead.
     - To simulate a route, pass a `SimulatedLocationManager` to `startNavigation()` function:
 
     ```swift
-    #if targetEnvironment(simulator) 
+    #if targetEnvironment(simulator)
         let locationManager = SimulatedLocationManager(route: route)
         locationManager.speedMultiplier = 2
         self.startNavigation(with: route, animated: false, locationManager: locationManager)
@@ -15,13 +18,33 @@
     #endif
     ```
 * Custom location snapping in the `RouteController` via the delegate
+
+### Changed
+
+* Only require background audio when using speech synthesis in https://github.com/maplibre/maplibre-navigation-ios/pull/64
+* Adjusted the camera during navigation to show more of what's "ahead" in the route - effectively moving the puck lower on the screen. As before, see `NavigationMapViewCourseTrackingDelegate.updateCamera(_:location:,routeProgress:)` if you want to customize this behavior.
+    - Merged in <https://github.com/maplibre/maplibre-navigation-ios/pull/92>
+
+### Deprecated
+
+* None
+
+### Removed
+
+* None
+
+### Fixed
+
 * Fix: If the directions API endpoint doesn't include audio instructions, `didArrive:` would never be called.
   * Merged in <https://github.com/maplibre/maplibre-navigation-ios/pull/72>
-* Only require background audio when using speech synthesis in https://github.com/maplibre/maplibre-navigation-ios/pull/64
 * Fix: Respond to changes in dynamic type without having to restart the app in https://github.com/maplibre/maplibre-navigation-ios/pull/65
 * Fix: crash in EndOfRouteViewController and restore its presentation by in https://github.com/maplibre/maplibre-navigation-ios/pull/71
 * Fix: retain cycles in RouteMapViewController
 
+### Security
+
+* None
+
 ## 3.0.0 (Jun 15, 2024)
 * The `speak` method in `RouteVoiceController` can be used without a given `RouteProgress` or the `RouteProgress` can explicitly ignored so that it will not be added to the voice instruction.
 * `RouteProgress` is now optional in `willSpeak` method of `VoiceControllerDelegate` if the `RouteProgress` in the `speak` method of the `RouteVoiceController is `nil`.
@@ -46,8 +69,6 @@
     - Merged in <https://github.com/maplibre/maplibre-navigation-ios/pull/47>
 * Fix: NavigationViewController displayed incorrect `speedMultiplier` when using SimulatedLocationManager
     - Merged in <https://github.com/maplibre/maplibre-navigation-ios/pull/49>
-* Adjusted the camera during navigation to show more of what's "ahead" in the route - effectively moving the puck lower on the screen. As before, see `NavigationMapViewCourseTrackingDelegate.updateCamera(_:location:,routeProgress:)` if you want to customize this behavior.
-    - Merged in <https://github.com/maplibre/maplibre-navigation-ios/pull/92>
 
 ## v2.0.0 (May 23, 2023)
 * Upgrade minimum iOS version from 11.0 to 12.0.