feat(creator): 후원 탭 UI 조각을 추가한다

SodaLive/Sources/V2/CreatorChannel/Donation/Components/CreatorChannelDonationEmptyView.swift

@@ -0,0 +1,49 @@
+import SwiftUI
+
+struct CreatorChannelDonationEmptyView: View {
+    let showsDonateButton: Bool
+    let onTapDonate: () -> Void
+
+    var body: some View {
+        VStack(spacing: SodaSpacing.s20) {
+            Text("아직 후원이 없습니다.\n처음으로 크리에이터를 후원해 보세요!")
+                .appFont(size: 16, weight: .medium)
+                .foregroundColor(Color.gray500)
+                .multilineTextAlignment(.center)
+                .lineSpacing(SodaSpacing.s4)
+
+            if showsDonateButton {
+                Button(action: onTapDonate) {
+                    HStack(spacing: SodaSpacing.s6) {
+                        Image("ic_new_donation")
+                            .resizable()
+                            .renderingMode(.template)
+                            .foregroundColor(.white)
+                            .scaledToFit()
+                            .frame(width: 20, height: 20)
+
+                        Text("후원하기")
+                            .appFont(size: 16, weight: .medium)
+                            .foregroundColor(.white)
+                            .lineLimit(1)
+                    }
+                    .padding(.horizontal, SodaSpacing.s20)
+                    .frame(height: 44)
+                    .background(Color.soda400)
+                    .clipShape(Capsule())
+                }
+                .buttonStyle(.plain)
+            }
+        }
+        .frame(maxWidth: .infinity)
+        .padding(.vertical, 48)
+    }
+}
+
+struct CreatorChannelDonationEmptyView_Previews: PreviewProvider {
+    static var previews: some View {
+        CreatorChannelDonationEmptyView(showsDonateButton: true, onTapDonate: {})
+            .background(Color.black)
+            .previewLayout(.sizeThatFits)
+    }
+}