refactor(themes): update theming with igx set as default prefix

Author: simeonoff

package-lock.json

@@ -75,7 +75,7 @@
     "@types/source-map": "0.5.2",
     "express": "^5.1.0",
     "fflate": "^0.8.1",
-    "igniteui-theming": "^21.0.0-beta.1",
+    "igniteui-theming": "^21.0.0-beta.2",
     "igniteui-trial-watermark": "^3.1.0",
     "lodash-es": "^4.17.21",
     "rxjs": "^7.8.2",

package.json

@@ -73,7 +73,7 @@
         "tslib": "^2.3.0",
         "igniteui-trial-watermark": "^3.1.0",
         "lodash-es": "^4.17.21",
-        "igniteui-theming": "^21.0.0-beta.1",
+        "igniteui-theming": "^21.0.0-beta.2",
         "@igniteui/material-icons-extended": "^3.1.0"
     },
     "peerDependencies": {

projects/igniteui-angular/package.json

@@ -91,7 +91,6 @@
     $enhanced-accessibility: false
 ) {
     @include color.configure-colors($enhanced-accessibility);
-    @include theming.configure-prefix('igx');
 
     // Angular hack for binding to [hidden] property
     // not working