Add sidecar support to photos

src/backend/model/fileaccess/MetadataLoader.ts

@@ -32,7 +32,7 @@ export class MetadataLoader {
         fileSize: 0,
         fps: 0,
       };
-      
+
       try {
         // search for sidecar and merge metadata
         const fullPathWithoutExt = path.parse(fullPath).name;
@@ -180,6 +180,28 @@ export class MetadataLoader {
               // ignoring errors
             }
 
+            try {
+              // search for sidecar and merge metadata
+              const fullPathWithoutExt = path.parse(fullPath).name;
+              const sidecarPaths = [
+                fullPath + '.xmp',
+                fullPath + '.XMP',
+                fullPathWithoutExt + '.xmp',
+                fullPathWithoutExt + '.XMP',
+              ];
+      
+              for (const sidecarPath of sidecarPaths) {
+                if (fs.existsSync(sidecarPath)) {
+                  const sidecarData = exifr.sidecar(sidecarPath);
+                  sidecarData.then((response) => {
+                    metadata.keywords = [(response as any).dc.subject].flat();
+                  });
+                }
+              }
+            } catch (err) {
+              // ignoring errors
+            }
+
             try {
               const exif = ExifParserFactory.create(data).parse();
               if (