chore(traces): tighten padding (#87460)

**Before:**
![Screenshot 2025-03-19 at 3 05
26 PM](https://github.com/user-attachments/assets/81fabeb2-ea95-416c-82ea-148006a679ee)
![Screenshot 2025-03-19 at 3 24
42 PM](https://github.com/user-attachments/assets/c482d21a-3502-4486-8417-e809aae0dc89)

**After:**
![Screenshot 2025-03-19 at 3 11
01 PM](https://github.com/user-attachments/assets/54fdc534-c7c0-45e0-ba06-94467f0d3e96)
![Screenshot 2025-03-19 at 3 24
16 PM](https://github.com/user-attachments/assets/e93a70a3-82f6-448c-b4c1-c7e7e2fd5935)

Author: doralchan

static/app/views/explore/charts/index.tsx

@@ -364,7 +364,7 @@ export function useExtrapolationMeta({
 const ChartList = styled('div')`
   display: grid;
   row-gap: ${space(2)};
-  margin-bottom: ${space(2)};
+  margin-bottom: ${space(1)};
 `;
 
 const ChartLabel = styled('div')`

static/app/views/explore/tables/index.tsx

@@ -109,5 +109,5 @@ const SamplesTableHeader = styled('div')`
   display: flex;
   flex-direction: row;
   justify-content: space-between;
-  margin-bottom: ${space(2)};
+  margin-bottom: ${space(1)};
 `;