merge SpeziHealthKitUI into SpeziHealthKit

this sadly seems to be necessary to work around swiftlang/swift#78734 and swiftlang/swift#78735

Package.swift

@@ -19,12 +19,12 @@ let package = Package(
         .iOS(.v17)
     ],
     products: [
-        .library(name: "SpeziHealthKit", targets: ["SpeziHealthKit"]),
-        .library(name: "SpeziHealthKitUI", targets: ["SpeziHealthKitUI"])
+        .library(name: "SpeziHealthKit", targets: ["SpeziHealthKit"])
     ],
     dependencies: [
         .package(path: "../Spezi"),
-        .package(path: "../SpeziFoundation")
+        .package(path: "../SpeziFoundation"),
+        .package(url: "https://github.com/pointfreeco/swift-snapshot-testing", from: "1.17.7")
     ] + swiftLintPackage(),
     targets: [
         .target(
@@ -35,20 +35,12 @@ let package = Package(
             ],
             plugins: [] + swiftLintPlugin()
         ),
-        .target(
-            name: "SpeziHealthKitUI",
-            dependencies: [
-                .target(name: "SpeziHealthKit"),
-                .product(name: "Spezi", package: "Spezi"),
-                .product(name: "SpeziFoundation", package: "SpeziFoundation")
-            ],
-            plugins: [] + swiftLintPlugin()
-        ),
         .testTarget(
             name: "SpeziHealthKitTests",
             dependencies: [
                 .product(name: "XCTSpezi", package: "Spezi"),
-                .target(name: "SpeziHealthKit")
+                .target(name: "SpeziHealthKit"),
+                .product(name: "SnapshotTesting", package: "swift-snapshot-testing")
             ],
             plugins: [] + swiftLintPlugin()
         )

Sources/SpeziHealthKitUI/HealthChart/HealthChartEntry.swift → Sources/SpeziHealthKit/HealthChart/HealthChartEntry.swift

@@ -16,10 +16,10 @@ import SpeziHealthKit
 // TODO Rename HealthChartDateSet? (Entry kinda sounds like it's referring to a single data point. But then again, it could very well also be the case that we want to split eg "step count" up into separate data sets, to make it look nicer?
 /// An entry in a ``HealthChart``
 public final class HealthChartEntry<Results: HealthKitQueryResults>: Sendable {
-    public typealias HealthKitQueryDataPoint = SpeziHealthKitUI.HealthKitQueryDataPoint//<Results.Element.ID>
+//    public typealias HealthKitQueryDataPoint = SpeziHealthKit.HealthKitQueryDataPoint//<Results.Element.ID>
     public typealias MakeDataPointImp = @Sendable (Results.Element, Results) -> HealthKitQueryDataPoint?
 
-    private enum Variant {
+    private enum Variant: Sendable {
         case regular(Results, HealthChartDrawingConfig, MakeDataPointImp)
         case empty
     }