fix: initialize regions store as empty ConsoleRegionList

Using undefined as the initial value can lead to issues when trying to access the store such as:

TypeError: Cannot read properties of undefined (reading 'regions')

src/lib/stores/organization.ts

@@ -61,4 +61,4 @@ export const organization = derived(page, ($page) => $page.data?.organization as
 export const currentPlan = derived(page, ($page) => $page.data?.currentPlan as Plan);
 export const members = derived(page, ($page) => $page.data.members as Models.MembershipList);
 
-export const regions = writable<Models.ConsoleRegionList | undefined>(undefined);
+export const regions = writable<Models.ConsoleRegionList>({ total: 0, regions: [] });

src/routes/(console)/regions.ts

@@ -16,7 +16,7 @@ export async function loadAvailableRegions(orgId: string): Promise<void> {
     try {
         const storedRegions = get(regions);
 
-        if (storedRegions?.regions && lastLoadedOrganization === orgId) {
+        if (storedRegions.regions && lastLoadedOrganization === orgId) {
             // already loaded for this organization, fast path return.
             return;
         }