🐛 fix build issue

package.json

@@ -10,6 +10,7 @@
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "dependencies": {
+    "@ng-bootstrap/ng-bootstrap": "^12.1.2",
     "@angular/router": "^13.3.11",
     "@types/d3": "^7.1.0",
     "@types/plotly.js-dist-min": "^2.3.0",

src/app/discs-chart/year-graph/year-graph.component.scss

@@ -2,9 +2,9 @@
 @import "bootstrap/scss/variables";
 @import "bootstrap/scss/maps";
 @import "bootstrap/scss/mixins";
-@import "bootstrap/scss/utilities";
-@import "bootstrap/scss/forms";
-@import "bootstrap/scss/card";
+// @import "bootstrap/scss/utilities";
+// @import "bootstrap/scss/forms";
+// @import "bootstrap/scss/card";
 
 .year-range {
   text-align: center;