Style Preview Pdf

- Customized the preview as shown by email
- Added two svg for quote icons. (Need convert to font)
- Ceate two class for quote icons.
- Added tag strong into yml for text decoration
- Customize css

app/assets/stylesheets/icons.scss

@@ -292,3 +292,25 @@
 .icon-bars::before {
   content: '\22';
 }
+
+.icon-quote-before::before {
+  content: '';
+  background-size: cover;
+  display: block;
+  width: 60px;
+  height: 60px;
+  background-image: url(quote-before.svg);
+  fill:red;
+  background-repeat: no-repeat;
+}
+
+.icon-quote-after::before {
+  content: '';
+  background-size: cover;
+  display: block;
+  width: 60px;
+  height: 60px;
+  background-image: url(quote-after.svg);
+  fill:red;
+  background-repeat: no-repeat;
+}