Fix object position layout (#1302)

## Description

Object position doesn't fit the grid layout like other elements have in
size section


## Code Review

- [ ] hi @TrySound , I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio-builder/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env.example`
and the `builder/env-check.js` if mandatory

apps/builder/app/builder/features/style-panel/sections/size/size.tsx

@@ -1,6 +1,6 @@
 import type { StyleProperty } from "@webstudio-is/css-data";
 import { toValue } from "@webstudio-is/css-engine";
-import { Grid } from "@webstudio-is/design-system";
+import { Flex, Grid } from "@webstudio-is/design-system";
 import { styleConfigByName } from "../../shared/configs";
 import type { RenderCategoryProps } from "../../style-sections";
 import { PropertyName } from "../../shared/property-name";
@@ -158,6 +158,8 @@ export const SizeSection = ({
           setProperty={setProperty}
           deleteProperty={deleteProperty}
         />
+      </Grid>
+      <Flex justify="between">
         <PropertyName
           label={styleConfigByName.objectPosition.label}
           property="objectPosition"
@@ -170,7 +172,7 @@ export const SizeSection = ({
           setProperty={setProperty}
           deleteProperty={deleteProperty}
         />
-      </Grid>
+      </Flex>
     </CollapsibleSection>
   );
 };