Add alt text for series images

Closes #8332

frontend/src/AddSeries/AddNewSeries/AddNewSeriesModalContent.tsx

@@ -136,6 +136,7 @@ function AddNewSeriesModalContent({
                 className={styles.poster}
                 images={images}
                 size={250}
+                title={title}
               />
             </div>
           )}

frontend/src/AddSeries/AddNewSeries/AddNewSeriesSearchResult.tsx

@@ -74,6 +74,7 @@ function AddNewSeriesSearchResult({ series }: AddNewSeriesSearchResultProps) {
             size={250}
             overflow={true}
             lazy={false}
+            title={title}
           />
         )}