fix: type updates and name refactors

Author: logaretm

packages/browser-utils/src/metrics/web-vitals/lib/LCPEntryManager.ts

@@ -17,10 +17,10 @@
 // eslint-disable-next-line jsdoc/require-jsdoc
 export class LCPEntryManager {
   // eslint-disable-next-line @typescript-eslint/explicit-member-accessibility
-  _onBeforeProcessingEntry?: (entry: LargestContentfulPaint) => void;
+  _onBeforeProcessingEntry?: (entry: LargestContentfulPaint | InteractionContentfulPaint) => void;
 
   // eslint-disable-next-line @typescript-eslint/explicit-member-accessibility, jsdoc/require-jsdoc
-  _processEntry(entry: LargestContentfulPaint) {
+  _processEntry(entry: LargestContentfulPaint | InteractionContentfulPaint) {
     this._onBeforeProcessingEntry?.(entry);
   }
 }

packages/browser-utils/src/metrics/web-vitals/lib/getActivationStart.ts

@@ -17,6 +17,7 @@
 import { getNavigationEntry } from './getNavigationEntry';
 
 export const getActivationStart = (): number => {
-  const navEntry = getNavigationEntry();
-  return navEntry?.activationStart ?? 0;
+  const hardNavEntry = getNavigationEntry();
+
+  return hardNavEntry?.activationStart ?? 0;
 };