added updateall btn to marketplace

desktop/src/shared/extensions.js

@@ -46,7 +46,6 @@ async function loadExtensions() {
     }
 }
 
-
 async function loadExtension(fileName) {
     const homeDir = os.homedir();
     const extensionsDir = path.join(homeDir, 'WaifuBoards', 'extensions');
@@ -77,6 +76,7 @@ async function loadExtension(fileName) {
         }
 
         const name = instance.constructor.name;
+        instance.__fileName = fileName;
         instance.scrape = scrape;
         instance.cheerio = cheerio;
         extensions.set(name, instance);
@@ -114,6 +114,14 @@ async function saveExtensionFile(fileName, downloadUrl) {
             file.on('finish', async () => {
                 file.close(async () => {
                     try {
+                        const extName = fileName.replace('.js', '');
+
+                        for (const key of extensions.keys()) {
+                            if (key.toLowerCase() === extName.toLowerCase()) {
+                                extensions.delete(key);
+                                break;
+                            }
+                        }
                         await loadExtension(fileName);
                         resolve();
                     } catch (err) {