Add instrument region filtering

Sources/MusicAssistantApp/Presentation/InstrumentBrowserView.swift

@@ -6,6 +6,7 @@ struct InstrumentBrowserView: View {
 
     @State private var searchText = ""
     @State private var selectedFamilyCategory: String?
+    @State private var selectedRegionOrigin: String?
     @Environment(\.dismiss) private var dismiss
 
     init(catalog: LocalInstrumentCatalog = LocalInstrumentCatalog()) {
@@ -15,14 +16,27 @@ struct InstrumentBrowserView: View {
     var body: some View {
         NavigationStack {
             VStack(spacing: 0) {
-                Picker("Family", selection: $selectedFamilyCategory) {
-                    Text("All families").tag(String?.none)
+                HStack {
+                    Picker("Family", selection: $selectedFamilyCategory) {
+                        Text("All families").tag(String?.none)
 
-                    ForEach(catalog.familyCategories, id: \.self) { familyCategory in
-                        Text(familyCategory).tag(Optional(familyCategory))
+                        ForEach(catalog.familyCategories, id: \.self) { familyCategory in
+                            Text(familyCategory).tag(Optional(familyCategory))
+                        }
                     }
+                    .pickerStyle(.menu)
+
+                    Spacer()
+
+                    Picker("Region", selection: $selectedRegionOrigin) {
+                        Text("All regions").tag(String?.none)
+
+                        ForEach(catalog.regionsOfOrigin, id: \.self) { regionOrigin in
+                            Text(regionOrigin).tag(Optional(regionOrigin))
+                        }
+                    }
+                    .pickerStyle(.menu)
                 }
-                .pickerStyle(.menu)
                 .padding(.horizontal)
                 .padding(.vertical, 8)
 
@@ -31,7 +45,8 @@ struct InstrumentBrowserView: View {
                 List(
                     catalog.instruments(
                         matching: searchText,
-                        familyCategory: selectedFamilyCategory
+                        familyCategory: selectedFamilyCategory,
+                        regionOrigin: selectedRegionOrigin
                     ),
                     id: \.id
                 ) { instrument in