Fix JSON parsing in NFO JavaScript modules

- Add response.json() calls in nfo-manager.js for all API calls
- Add response.json() calls in nfo-config.js for all API calls
- Fix createNFO, refreshNFO, viewNFO, getSeriesWithoutNFO functions
- Fix load and testTMDBConnection functions
- All API responses must be parsed before accessing properties

src/server/web/static/js/index/nfo-config.js

@@ -18,7 +18,13 @@ AniWorld.NFOConfig = (function() {
      */
     async function load() {
         try {
-            const config = await AniWorld.ApiClient.request(API.CONFIG);
+            const response = await AniWorld.ApiClient.request(API.CONFIG);
+            
+            if (!response) {
+                throw new Error('Failed to load configuration');
+            }
+            
+            const config = await response.json();
             
             if (config && config.nfo) {
                 const nfo = config.nfo;
@@ -148,10 +154,16 @@ AniWorld.NFOConfig = (function() {
                 }
             );
             
-            if (response && response.valid) {
+            if (!response) {
+                throw new Error('No response from server');
+            }
+            
+            const data = await response.json();
+            
+            if (data && data.valid) {
                 AniWorld.UI.showToast('TMDB API key is valid!', 'success');
             } else {
-                const message = response && response.message ? response.message : 'Invalid API key';
+                const message = data && data.message ? data.message : 'Invalid API key';
                 AniWorld.UI.showToast('TMDB validation failed: ' + message, 'error');
             }
         } catch (error) {