fix dashboard css errors and lesson book row left padding

app/components/Dashboard/dashboard.local.scss

 $primary-color: #515253;
 
+$black: #000;
+$dark-grey: #fff;
+$grey: #808080;
+$maroon: #502424;
+$medium-grey: #838587;
+
 .bookList {
   .bookTitle {
     border-bottom: .1em solid;
     position: relative;
   }
 
-  h1, .h1 {
-    font-weight: 500;
-    font-style: italic;
+  h1,
+  .h1 {
     font-size: 48px;
+    font-style: italic;
+    font-weight: 500;
     line-height: 56px;
     margin: 0;
   }
 
-  h2, .h2 {
+  h2,
+  .h2 {
     color: $primary-color;
     font-size: 32px;
     font-style: italic;
@@ -24,9 +32,9 @@ $primary-color: #515253;
   }
 
   .addBookBtn {
-    background-color: grey;
-    border: 1px solid grey;
-    color: #fff;
+    background-color: $grey;
+    border: 1px solid $grey;
+    color: $dark-grey;
     cursor: pointer;
     float: right;
     font-size: 16px;
@@ -36,44 +44,47 @@ $primary-color: #515253;
     text-align: center;
 
     &:hover {
-      border: 1px solid #000;
+      border: 1px solid $black;
     }
+
     a {
-      color: #fff;
-      text-decoration: none;
-      position: relative;
       bottom: 14px;
+      color: $dark-grey;
+      position: relative;
+      text-decoration: none;
+
       &:hover {
+        cursor: pointer;
         text-decoration: none;
-        cursor:pointer;
       }
     }
   }
 
   .bookContainer {
-    border-bottom: 1px solid #838587;
+    border-bottom: 1px solid $medium-grey;
     margin-top: 3em;
     padding-bottom: 0;
-    padding-left: 2em;
+    padding-left: 1em;
     padding-top: 0;
     position: relative;
   }
 
   .bookActions {
     bottom: 0;
-    right: 13px;
     position: absolute;
+    right: 13px;
   }
 
   .editBook {
-    color: #838587;
-    text-decoration: none;
+    color: $medium-grey;
+    display: inline-block;
     font-style: italic;
     font-weight: 500;
-    display: inline-block;
     margin-left: 13px;
+    text-decoration: none;
+
     &:hover {
-      color:#502424;
+      color: $maroon;
       text-decoration: none;
     }
   }