update linting rules and fix issues

Author: rsavian

.eslintrc

@@ -26,7 +26,8 @@
     "react/jsx-boolean-value": [0],
     "react/prop-types": [0],
     "react/sort-comp": [0],
-    "react/prefer-stateless-function": [2, {"ignorePureComponents": true}]
+    "react/prefer-stateless-function": [2, {"ignorePureComponents": true}],
+    "filenames/no-index": [2]
   },
   "plugins": [
     "react",

src/assets/styles/styles.css

@@ -32,13 +32,6 @@ body {
     border-top: .05rem solid #e5e5e5;
 }
 
-/* Customize container */
-@media (min-width: 48em) {
-    .container {
-        max-width: 46rem;
-    }
-}
-
 .container-narrow > hr {
     margin: 2rem 0;
 }