[CL-372] Add required type attr to buttons in stories (#15892)

libs/components/src/navigation/nav-item.stories.ts

@@ -86,9 +86,10 @@ export const WithoutRoute: Story = {
 export const WithChildButtons: Story = {
   render: (args) => ({
     props: args,
-    template: `
+    template: /*html*/ `
       <bit-nav-item text="Hello World Very Cool World" [route]="['']" icon="bwi-collection-shared">
         <button
+          type="button" 
           slot="end"
           class="tw-ms-auto"
           [bitIconButton]="'bwi-pencil-square'"
@@ -97,6 +98,7 @@ export const WithChildButtons: Story = {
           aria-label="option 2"
         ></button>
         <button
+          type="button" 
           slot="end"
           class="tw-ms-auto"
           [bitIconButton]="'bwi-check'"