[improvement] rename packages dir to src (#3659)

src/picker/shared.ts

@@ -0,0 +1,25 @@
+export type SharedPickerProps = {
+  title?: string;
+  loading?: boolean;
+  itemHeight: number;
+  showToolbar?: boolean;
+  visibleItemCount: number;
+  cancelButtonText?: string;
+  confirmButtonText?: string;
+}
+
+export const pickerProps = {
+  title: String,
+  loading: Boolean,
+  showToolbar: Boolean,
+  cancelButtonText: String,
+  confirmButtonText: String,
+  visibleItemCount: {
+    type: Number,
+    default: 5
+  },
+  itemHeight: {
+    type: Number,
+    default: 44
+  }
+};