reorder file structure

Frontend/lib/mih_components/mih_objects/medicine.dart

@@ -0,0 +1,19 @@
+class Medicine {
+  final String name;
+  final String unit;
+  final String form;
+
+  const Medicine(
+    this.name,
+    this.unit,
+    this.form,
+  );
+
+  factory Medicine.fromJson(dynamic json) {
+    return Medicine(
+      json['name'],
+      json['unit'],
+      json['dosage form'],
+    );
+  }
+}