use css annotations

Author: mofterdinger

db/books.cds

@@ -28,11 +28,12 @@ entity Books : cuid, managed {
 
 annotate Attachments with @UI: {
     LineItem  : [
-        {Value: content},
-        {Value: fileName},
-        {Value: status},
-        {Value: createdAt},
-        {Value: createdBy},
+        {Value: content, @HTML5.CssDefaults: {width: '25%'}},
+        {Value: fileName, @HTML5.CssDefaults: {width: '25%'}},
+        {Value: mimeType, @HTML5.CssDefaults: {width: '10%'}},
+        {Value: status, @HTML5.CssDefaults: {width: '10%'}},
+        {Value: createdAt, @HTML5.CssDefaults: {width: '20%'}},
+        {Value: createdBy, @HTML5.CssDefaults: {width: '15%'}},
         {Value: note}
     ]
 } {