Fixes #3892 - `/assets/fonts/` changed to `/fonts/`.

app/assets/stylesheets/font.css

@@ -1,39 +1,39 @@
 @font-face {
   font-family: 'Fira Sans';
-  src: url('fonts/FiraSans-Bold.eot');
-  src: url('fonts/FiraSans-Bold.woff2') format('woff2'),
-    url('fonts/FiraSans-Bold.woff') format('woff'),
-    url('fonts/FiraSans-Bold.ttf') format('truetype');
+  src: url('assets/fonts/FiraSans-Bold.eot');
+  src: url('assets/fonts/FiraSans-Bold.woff2') format('woff2'),
+    url('assets/fonts/FiraSans-Bold.woff') format('woff'),
+    url('assets/fonts/FiraSans-Bold.ttf') format('truetype');
   font-weight: bold;
   font-style: normal;
 }
 
 @font-face {
   font-family: 'Fira Sans';
-  src: url('fonts/FiraSans-Regular.eot');
-  src: url('fonts/FiraSans-Regular.woff2') format('woff2'),
-    url('fonts/FiraSans-Regular.woff') format('woff'),
-    url('fonts/FiraSans-Regular.ttf') format('truetype');
+  src: url('assets/fonts/FiraSans-Regular.eot');
+  src: url('assets/fonts/FiraSans-Regular.woff2') format('woff2'),
+    url('assets/fonts/FiraSans-Regular.woff') format('woff'),
+    url('assets/fonts/FiraSans-Regular.ttf') format('truetype');
   font-weight: normal;
   font-style: normal;
 }
 
 @font-face {
   font-family: 'Fira Sans';
-  src: url('fonts/FiraSans-Medium.eot');
-  src: url('fonts/FiraSans-Medium.woff2') format('woff2'),
-    url('fonts/FiraSans-Medium.woff') format('woff'),
-    url('fonts/FiraSans-Medium.ttf') format('truetype');
+  src: url('assets/fonts/FiraSans-Medium.eot');
+  src: url('assets/fonts/FiraSans-Medium.woff2') format('woff2'),
+    url('assets/fonts/FiraSans-Medium.woff') format('woff'),
+    url('assets/fonts/FiraSans-Medium.ttf') format('truetype');
   font-weight: 500;
   font-style: normal;
 }
 
 @font-face {
   font-family: 'Fira Sans';
-  src: url('fonts/FiraSans-Light.eot');
-  src: url('fonts/FiraSans-Light.woff2') format('woff2'),
-    url('fonts/FiraSans-Light.woff') format('woff'),
-    url('fonts/FiraSans-Light.ttf') format('truetype');
+  src: url('assets/fonts/FiraSans-Light.eot');
+  src: url('assets/fonts/FiraSans-Light.woff2') format('woff2'),
+    url('assets/fonts/FiraSans-Light.woff') format('woff'),
+    url('assets/fonts/FiraSans-Light.ttf') format('truetype');
   font-weight: 300;
   font-style: normal;
 }