Bump bootstrap from 5.1.3 to 5.2.1

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

assets/stylesheets/application.css.scss

@@ -11,7 +11,7 @@ $navbar-height: 50px;
 
 // Boostrap 5 customization
 // Document: https://getbootstrap.com/docs/5.2/customize/sass/#importing
-// List of SCSS to load: https://github.com/twbs/bootstrap/blob/v5.1.3/scss/bootstrap.scss
+// List of SCSS to load: https://github.com/twbs/bootstrap/blob/v5.2.1/scss/bootstrap.scss
 @import "~bootstrap/scss/functions";
 
 pre {
@@ -28,14 +28,15 @@ $pre-color: #fff;
 $icon-font-path: '~bootstrap/assets/fonts/bootstrap/';
 
 @import "~bootstrap/scss/variables";
+@import "~bootstrap/scss/maps";
 @import "~bootstrap/scss/mixins";
 @import "~bootstrap/scss/utilities";
 
 // Layout & components
 // Note: tables, dropdown, button-group, accordion, breadcrumb, pagination,
 // badge, alert, progress, list-group, close, toasts, modal, tooltip, carousel,
 // spinners, offcanvas, and placeholders were excluded as they are not used as
-// of Bootstrap 5.1.3
+// of Bootstrap 5.2.1
 @import "~bootstrap/scss/root";
 @import "~bootstrap/scss/reboot";
 @import "~bootstrap/scss/type";

package.json

@@ -37,7 +37,7 @@
   "dependencies": {
     "@popperjs/core": "^2.11.6",
     "anchor-js": "^4.3.1",
-    "bootstrap": "^5.1.3",
+    "bootstrap": "^5.2.1",
     "lunr": "^0.7.0"
   }
 }