fixed v11 angular missing package.json

* looks like ng18 was adding a .npmignore to skip our (nested) package.json which is required to compile our demo.

will need to re-release v11.0.1 soon.

Author: adumesny

angular/package.json

@@ -18,7 +18,7 @@
     "@angular/platform-browser": "~18.2.6",
     "@angular/platform-browser-dynamic": "~18.2.6",
     "@angular/router": "~18.2.6",
-    "gridstack": "^10.3.1",
+    "gridstack": "^11",
     "rxjs": "~7.5.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.14"

angular/projects/lib/package.json

@@ -1,6 +1,6 @@
 {
   "name": "gridstack-angular",
-  "version": "10.3.1",
+  "version": "11.0.0",
   "peerDependencies": {
     "@angular/common": ">=14",
     "@angular/core": ">=14"