Attempt at fixing missing files

material/assets/fonts/MaterialIcons.css

+@font-face {
+  font-family: "Material Icons";
+  font-style: normal;
+  font-weight: 400;
+  src: url("MaterialIcons-Regular.eot"); /* For IE6-8 */
+  src: local("Material Icons"), local("MaterialIcons-Regular"),
+  url("MaterialIcons-Regular.woff2") format("woff2"),
+  url("MaterialIcons-Regular.woff") format("woff"),
+  url("MaterialIcons-Regular.ttf") format("truetype");
+}
+
+.material-icons {
+  display: inline-block;
+  font-family: "Material Icons", sans-serif;
+  font-size: 1.5rem; /* Preferred icon size */
+
+  /* Support for Firefox. */
+  -moz-osx-font-smoothing: grayscale;
+
+  /* Support for all WebKit browsers. */
+  -webkit-font-smoothing: antialiased;
+  font-style: normal;
+  font-weight: 400;
+  letter-spacing: normal;
+  line-height: 1;
+
+  /* Support for Safari and Chrome. */
+  text-rendering: optimizeLegibility;
+  text-transform: none;
+  word-wrap: normal;
+  white-space: nowrap;
+  direction: ltr;
+
+  /* Support for IE. */
+  font-feature-settings: "liga";
+}

material/assets/fonts/roboto-mono.css

+/* roboto-mono-regular - latin */
+@font-face {
+  font-family: "Roboto Mono";
+  font-style: normal;
+  font-weight: 400;
+  src: url("roboto-mono-v5-latin-regular.eot"); /* IE9 Compat Modes */
+  src: local("Roboto Mono"), local("RobotoMono-Regular"),
+  url("roboto-mono-v5-latin-regular.eot?#iefix") format("embedded-opentype"), /* IE6-IE8 */
+  url("roboto-mono-v5-latin-regular.woff2") format("woff2"), /* Super Modern Browsers */
+  url("roboto-mono-v5-latin-regular.woff") format("woff"), /* Modern Browsers */
+  url("roboto-mono-v5-latin-regular.ttf") format("truetype"), /* Safari, Android, iOS */
+  url("roboto-mono-v5-latin-regular.svg#RobotoMono") format("svg"); /* Legacy iOS */
+}