style: stronger shade for divider

src/app/components/shared/divider/divider.component.ts

···
   selector: 'divider',
   template: `
     <div
-      class="border-b border-b-primary/10 w-9/10"
+      class="border-b border-b-primary/25 w-9/10"
       style="mask-image: linear-gradient(to right, transparent, #000000 50%, transparent);"
     ></div>
   `,