Enhance RevenueSection to conditionally load product prices based on currentRegionId

- Updated watchers in RevenueSection to ensure product prices are only loaded when currentRegionId is not null.
- Added a check in loadPricesForAllProducts to skip execution if currentRegionId is null or undefined, improving performance and preventing unnecessary calls.
- Enhanced overall logic to ensure accurate price loading based on the selected region, contributing to a better user experience.

frontend/src/components/falukant/RevenueSection.vue

@@ -78,17 +78,22 @@
     },
     watch: {
       isRevenueTableOpen(newVal) {
-        if (newVal) {
+        if (newVal && this.currentRegionId !== null) {
           this.loadPricesForAllProducts();
         }
       },
       products: {
         handler() {
-          if (this.isRevenueTableOpen) {
+          if (this.isRevenueTableOpen && this.currentRegionId !== null) {
             this.loadPricesForAllProducts();
           }
         },
         deep: true
+      },
+      currentRegionId(newVal) {
+        if (this.isRevenueTableOpen && newVal !== null) {
+          this.loadPricesForAllProducts();
+        }
       }
     },
     methods: {
@@ -99,6 +104,10 @@
         }
       },
       async loadPricesForAllProducts() {
+        if (this.currentRegionId === null || this.currentRegionId === undefined) {
+          console.log(`[RevenueSection] Skipping loadPricesForAllProducts - currentRegionId is null/undefined`);
+          return;
+        }
         console.log(`[RevenueSection] loadPricesForAllProducts called, products: ${this.products.length}, currentRegionId: ${this.currentRegionId}`);
         for (const product of this.products) {
           if (this.loadingPrices.has(product.id)) continue;