fix(Grid): fix incorrect layout when rendered before Device was initialized (#418)

Author: MarcusNotheis

packages/main/src/components/Form/Form.jss.ts

@@ -2,26 +2,8 @@ import { ThemingParameters } from '@ui5/webcomponents-react-base/lib/ThemingPara
 
 const styles = {
   formTitle: {
-    borderBottom: `1px solid ${ThemingParameters.sapGroup_TitleBorderColor}`
-  },
-  formTitlePaddingBottom: {
-    paddingBottom: '2em'
-  },
-  formPaddingBottom: {
-    paddingBottom: '1em'
-  },
-  formGroupStyle: {
-    width: '100%',
-    paddingTop: '0.25em'
-  },
-  formItemTopDiv: {
-    alignItems: 'center'
-  },
-  formLabel: {
-    paddingRight: '0.5em'
-  },
-  formElement: {
-    display: 'block'
+    borderBottom: `1px solid ${ThemingParameters.sapGroup_TitleBorderColor}`,
+    marginBottom: '2rem'
   }
 };