Update version tag for release

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dspace-angular",
-  "version": "7.6.3-next",
+  "version": "7.6.3",
   "scripts": {
     "ng": "ng",
     "config:watch": "nodemon",
@@ -110,8 +110,8 @@
     "ng2-nouislider": "^2.0.0",
     "ngx-infinite-scroll": "^15.0.0",
     "ngx-pagination": "6.0.3",
-    "ngx-sortablejs": "^11.1.0",
     "ngx-skeleton-loader": "^7.0.0",
+    "ngx-sortablejs": "^11.1.0",
     "ngx-ui-switch": "^14.1.0",
     "nouislider": "^15.8.1",
     "pem": "1.14.8",