Adds additional buttons and functionality to app team settings.

"Add to existing environment" table, "delete member", and environment
roles and env role edit buttons added for every user in the team
settings list. Accompanying CSS changes.

styles/components/_accordion_table.scss

@@ -91,6 +91,30 @@
           border-bottom: 1px solid $color-gray-lighter;
         }
       }
+
+      .accordion-table__item__action-group {
+        padding: 1rem 3.2rem;
+        background-color: $color-gray-lightest;
+
+        button,
+        a {
+          margin: 0;
+          font-size: $small-font-size;
+        }
+
+        .icon-link {
+          padding-top: 0.5rem;
+          float: none;
+        }
+
+        > *:first-child {
+          padding-left: 0;
+        }
+
+        > *:last-child {
+          float: right;
+        }
+      }
     }
 
     .accordion-table__item__toggler {
@@ -100,6 +124,10 @@
       color: $color-blue;
       padding: $gap;
 
+      > span {
+        margin-left: auto;
+      }
+
       .icon {
         @include icon-size(12);
 
@@ -147,6 +175,17 @@
       .accordion-table__item__expanded_first {
         float: left;
       }
+
+      .accordion-table__item__expanded-role {
+        .icon-link {
+          padding: 0;
+          vertical-align: text-top;
+
+          .icon {
+            margin: 0 0 0 0.25rem;
+          }
+        }
+      }
     }
   }
 }