Fix package dependency declarations in package manifest (#34)

* Fix declaration of mlx-swift-lm package dependency

Xcode seems to have an issue with trailing slash and/or main branch

* Drop .git suffixes from dependency declarations

* Sort package dependencies ascending

* Revert mlx-swift-lm to pulling from main branch, to match project recommendations

Author: mattt

Package.swift

@@ -28,13 +28,13 @@ let package = Package(
         .default(enabledTraits: []),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.0"),
-        .package(url: "https://github.com/mattt/JSONSchema.git", from: "1.3.0"),
-        .package(url: "https://github.com/mattt/EventSource.git", from: "1.3.0"),
-        .package(url: "https://github.com/mattt/PartialJSONDecoder.git", from: "1.0.0"),
-        .package(url: "https://github.com/ml-explore/mlx-swift-lm/", branch: "main"),
         .package(url: "https://github.com/huggingface/swift-transformers", from: "1.0.0"),
+        .package(url: "https://github.com/mattt/EventSource", from: "1.3.0"),
+        .package(url: "https://github.com/mattt/JSONSchema", from: "1.3.0"),
         .package(url: "https://github.com/mattt/llama.swift", .upToNextMajor(from: "1.6818.0")),
+        .package(url: "https://github.com/mattt/PartialJSONDecoder", from: "1.0.0"),
+        .package(url: "https://github.com/ml-explore/mlx-swift-lm", branch: "main"),
+        .package(url: "https://github.com/swiftlang/swift-syntax", from: "600.0.0"),
     ],
     targets: [
         .target(