Add messages to the current job’s history

This mocks out a data structure for a job’s messages, and renders this data:
- on the notification page, as a table, which links through to…
- …the page for an indidivual message

app/assets/stylesheets/components/sms-message.scss

@@ -28,6 +28,7 @@
   }
 
   &-wrapper {
+    width: 100%;
     display: inline-block;
     box-sizing: border-box;
     position: relative;

app/assets/stylesheets/components/table.scss

@@ -1,7 +1,43 @@
-.table {
+.table-heading {
+  text-align: left;
+}
+
+%table-field,
+.table-field {
+
+  &:last-child {
+    padding-right: 0;
+  }
+
+  &-status {
+
+    &-default {
+      color: $secondary-text-colour;
+    }
+
+    &-error {
+      color: $error-colour;
+      font-weight: bold;
+    }
 
-  &-heading {
-    text-align: left;
   }
 
 }
+
+.table-field-heading {
+
+  &:last-child {
+    padding-right: 0;
+  }
+
+  &-right-aligned {
+    display: block;
+    text-align: right;
+  }
+
+}
+
+.table-field-right-aligned {
+  @extend .table-field;
+  text-align: right;
+}