feat(trace-mobile-vitals): Defining stall time measurements as type duration (#87101)

Co-authored-by: Abdullah Khan <[email protected]>

Author: Abdkhan14

static/app/utils/fields/index.ts

@@ -1103,12 +1103,12 @@ export const MEASUREMENT_FIELDS: Record<WebVital | MobileVital, FieldDefinition>
   [MobileVital.STALL_TOTAL_TIME]: {
     desc: t('Total stall duration (React Native)'),
     kind: FieldKind.METRICS,
-    valueType: FieldValueType.PERCENTAGE,
+    valueType: FieldValueType.DURATION,
   },
   [MobileVital.STALL_LONGEST_TIME]: {
     desc: t('Duration of slowest Javascript event loop (React Native)'),
     kind: FieldKind.METRICS,
-    valueType: FieldValueType.INTEGER,
+    valueType: FieldValueType.DURATION,
   },
   [MobileVital.STALL_PERCENTAGE]: {
     desc: t('Total stall duration out of the total transaction duration (React Native)'),