Persist selected manufacturer across reloads

public/app.js

@@ -75,6 +75,7 @@ let loadRequestId = 0;
 let applicationMode = "dry-run";
 let databaseConnectionState = "unknown";
 const localDraftKey = "catalog-maker:current-product-draft:v2";
+const selectedManufacturerKey = "catalog-maker:selected-manufacturer";
 let localDraftProductKey = "";
 const fieldNames = [
     "id_manufacturer",
@@ -146,6 +147,12 @@ await loadManufacturers();
 await loadLanguages();
 languageSelect.addEventListener("change", syncLanguagePickerLabel);
 manufacturerSelect.addEventListener("change", () => {
+    if (manufacturerSelect.value) {
+        localStorage.setItem(selectedManufacturerKey, manufacturerSelect.value);
+    }
+    else {
+        localStorage.removeItem(selectedManufacturerKey);
+    }
     syncManufacturerPickerLabel();
     closeManufacturerPicker();
     if (manufacturerSelect.value) {
@@ -289,15 +296,29 @@ async function loadManufacturers() {
         }
         if (data.message)
             manufacturerSelect.append(createOption("", data.message));
+        restoreSelectedManufacturer();
         syncManufacturerPickerLabel();
         renderManufacturerOptions();
     }
     catch (error) {
         manufacturerSelect.append(createOption("", error.message || "Local DB is not configured."));
+        restoreSelectedManufacturer();
         syncManufacturerPickerLabel();
         renderManufacturerOptions();
     }
 }
+function restoreSelectedManufacturer() {
+    const savedManufacturerId = localStorage.getItem(selectedManufacturerKey);
+    if (!savedManufacturerId)
+        return;
+    const savedOption = [...manufacturerSelect.options].find((option) => option.value === savedManufacturerId);
+    if (savedOption) {
+        manufacturerSelect.value = savedManufacturerId;
+    }
+    else {
+        localStorage.removeItem(selectedManufacturerKey);
+    }
+}
 function toggleManufacturerPicker() {
     if (manufacturerMenu.hidden) {
         manufacturerMenu.hidden = false;