Fix error: stakingEvents parsing when not array

Sometimes the stakingEvents is null and we’re still trying to access it as an array.
Now we’re just initializing it as an empty array if no stakingEvents have been received.

Author: mraveux

src/stores/Staking.ts

@@ -202,7 +202,9 @@ export const useStakingStore = createStore({
             const { activeAddress } = useAddressStore();
             if (!activeAddress.value) return null;
 
-            return state.stakingEventsByAddress[activeAddress.value] || null;
+            const events = state.stakingEventsByAddress[activeAddress.value] || null;
+            if (!events || !Array.isArray(events)) return null;
+            return events;
         },
         restakingRewards: (state, { stakingEvents, activeValidator }): Readonly<number | null> => {
             // Only show rewards for restaking validators
@@ -212,7 +214,7 @@ export const useStakingStore = createStore({
             ) return null;
 
             const events = stakingEvents.value as StakingEvent[] | null;
-            if (!events) return null;
+            if (!events || !Array.isArray(events)) return null;
 
             const addStakeEvents: AddStakeEvent[] = events.filter((event) => {
                 if (event.type !== 6) return false;