Allows the user to download CBG list (#318)

* adds initial download CBG box

* componentize download packet, adds e2e tests

* changes download file url in test to smaller size

* improve testing functions

* removes underline, colors icon

* replace csv with zip for safari security issue

client/src/components/downloadPacket.module.scss

@@ -0,0 +1,59 @@
+$primary-color: #112f4e;
+
+.downloadBoxContainer {
+    flex: 0 0 350px;
+    // flex: 1;
+    // border: 1px solid red;
+
+    color: whitesmoke;
+    margin: auto;
+
+    .downloadBox {
+      background-color: $primary-color;
+      min-width: 400px;
+      border-radius: 6px 6px;
+
+      .downloadBoxTextBox {
+        // border: 2px solid green;
+        padding: 25px 25px;
+        display: flex;
+        flex-direction: column;
+        
+        .downloadBoxTitle {
+          font-weight: bold;
+          margin-bottom: 10px;
+        }
+
+        .downloadBoxText {
+          margin-bottom: 20px;
+        }
+
+        .downloadBoxButtonContainer {
+          margin-top: 20px 0 0 0;
+          align-self: center;
+
+          a {
+            text-decoration: none;
+          }
+
+          img {
+            // This should be a global css-filter value as it's generated
+            // from the primary color.
+            filter: invert(15%) sepia(9%) saturate(5666%) hue-rotate(175deg) brightness(96%) contrast(95%);
+          }
+        }
+
+        .downloadBoxButton{
+          background-color: white;
+          color: $primary-color;
+          display: flex;
+
+          .downloadPacketText {
+            padding-top: 4px;
+            padding-left: 5px;
+          }
+        }
+
+      }
+    }
+  }