chore: wrap share updates in transaction

Signed-off-by: grnd-alt <git@belakkaf.net>

[skip ci]

Author: grnd-alt

lib/Sharing/DeckShareProvider.php

@@ -1043,22 +1043,22 @@ public function getAllShares(): iterable {
 	}
 
 	protected function updateShareAttributes(IShare $share, ?string $data): IShare {
-		if ($data !== null && $data !== '') {
-			$attributes = $share->getAttributes() ?? $share->newAttributes();
-			$compressedAttributes = \json_decode($data, true);
-			if ($compressedAttributes === false || $compressedAttributes === null) {
-				return $share;
-			}
-			foreach ($compressedAttributes as $compressedAttribute) {
-				$attributes->setAttribute(
-					$compressedAttribute[0],
-					$compressedAttribute[1],
-					$compressedAttribute[2]
-				);
-			}
-			$share->setAttributes($attributes);
+		if ($data === null || $data === '') {
+			return $share;
 		}
-
+		$attributes = $share->getAttributes() ?? $share->newAttributes();
+		$compressedAttributes = \json_decode($data, true);
+		if ($compressedAttributes === false || $compressedAttributes === null) {
+			return $share;
+		}
+		foreach ($compressedAttributes as $compressedAttribute) {
+			$attributes->setAttribute(
+				$compressedAttribute[0],
+				$compressedAttribute[1],
+				$compressedAttribute[2]
+			);
+		}
+		$share->setAttributes($attributes);
 		return $share;
 	}