[ui] fix padding of runs tab (#25556)

## Summary & Motivation

<img width="655" alt="image"
src="https://github.com/user-attachments/assets/1b1760e2-23c8-4b99-91d9-af6b310e842f">

## How I Tested These Changes

## Changelog

> Insert changelog entry or delete this section.

js_modules/dagster-ui/packages/ui-core/src/runs/RunsFeedRoot.tsx

@@ -167,7 +167,7 @@ export const RunsFeedRoot = () => {
       <Box
         border="bottom"
         background={Colors.backgroundLight()}
-        padding={{left: 24, right: 20, top: 12}}
+        padding={{left: 24, right: 20}}
         flex={{direction: 'row', justifyContent: 'space-between'}}
       >
         {tabs}