fix: replaces material icons from node_modules with loacl icons

Material design icons fonts are not updated on npm and github, so using local fonts downloaded from cdn.  ref: google/material-design-icons#786

css/gulpfile.js

@@ -6,8 +6,8 @@ const concat = require('gulp-concat');
 const postcssColorMod = require('postcss-color-mod-function');
 const cleaner = require('gulp-clean');
 
-const materialIcons = '../node_modules/material-design-icons/iconfont/material-icons.css';
-const materialFont = '../node_modules/material-design-icons/iconfont/MaterialIcons-Regular.{ttf,woff,woff2,eot}';
+const materialIcons = './material-design-icons/iconfont/material-icons.css';
+const materialFont = './material-design-icons/iconfont/MaterialIcons-Regular.{ttf,woff,woff2,eot}';
 
 const sources = [
   './src/tokens/*.css',

css/material-design-icons/iconfont/material-icons.css

@@ -0,0 +1,36 @@
+@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 {
+  font-family: 'Material Icons';
+  font-weight: normal;
+  font-style: normal;
+  font-size: 16px;  /* Preferred icon size */
+  display: inline-block;
+  line-height: 1;
+  text-transform: none;
+  letter-spacing: normal;
+  word-wrap: normal;
+  white-space: nowrap;
+  direction: ltr;
+
+  /* Support for all WebKit browsers. */
+  -webkit-font-smoothing: antialiased;
+  /* Support for Safari and Chrome. */
+  text-rendering: optimizeLegibility;
+
+  /* Support for Firefox. */
+  -moz-osx-font-smoothing: grayscale;
+
+  /* Support for IE. */
+  font-feature-settings: 'liga';
+}

package.json

@@ -95,7 +95,6 @@
     "axios": "^0.19.2",
     "classnames": "^2.2.6",
     "js-beautify": "^1.11.0",
-    "material-design-icons": "^3.0.1",
     "react-dom": "^16.8.6",
     "react-popper": "^1.3.7",
     "recharts": "^1.8.5",