Merge pull request #460 from nextcloud/fix/info-xml-schema-compliance

fix(info.xml): Fix so it validates against the schema

appinfo/info.xml

@@ -11,17 +11,17 @@ The first time you install this app, before using a cron job, you properly want
 
 **Important**: To enable pre-generation of previews you must add **php /var/www/nextcloud/occ preview:pre-generate** to a system cron job that runs at times of your choosing.]]>
 	</description>
-	<licence>AGPL</licence>
-	<author>Richard Steinmetz</author>
 	<version>5.6.0-alpha.1</version>
+	<licence>agpl</licence>
+	<author>Richard Steinmetz</author>
 	<namespace>PreviewGenerator</namespace>
+	<types>
+		<filesystem/>
+	</types>
 	<category>multimedia</category>
 	<website>https://github.com/nextcloud/previewgenerator</website>
 	<bugs>https://github.com/nextcloud/previewgenerator/issues</bugs>
 	<repository type="git">https://github.com/nextcloud/previewgenerator.git</repository>
-	<types>
-		<filesystem/>
-	</types>
 	<dependencies>
 		<php min-version="8.0" max-version="8.3" />
 		<nextcloud min-version="26" max-version="29" />