Styling updates for Task Order index page:

- Removed unused styling from _accordions css.
- Removed references to accordion classes from applications index page
since this will be restyled later.
- Added Accordion macro to the Task Order index page and created
temporary initial
toggle list of All Task Orders.

styles/sections/_task_order.scss

@@ -1,25 +1,3 @@
-.task-order-list {
-  margin-top: 6 * $gap;
-}
-
-.task-order-card {
-  &__buttons .usa-button {
-    min-width: 10rem;
-  }
-
-  &__buttons .usa-button-secondary {
-    min-width: 14rem;
-  }
-
-  .label {
-    font-size: $small-font-size;
-    margin-right: 2 * $gap;
-    min-width: 7rem;
-    display: flex;
-    justify-content: space-around;
-  }
-}
-
 .task-order {
   margin-top: $gap * 4;
   width: 900px;
@@ -207,3 +185,8 @@
     padding-bottom: $gap * 2.5;
   }
 }
+
+.task-order__list {
+  margin-top: $gap;
+  margin-bottom: $gap;
+}