add bs-breakpoints

package.json

@@ -170,6 +170,7 @@
     "bootstrap": "^4.4.1",
     "browser-bunyan": "^1.3.0",
     "browser-sync": "^2.26.3",
+    "bs-breakpoints": "^1.1.1",
     "bunyan-debug": "^2.0.0",
     "cli": "~1.0.1",
     "codemirror": "^5.48.4",

yarn.lock

@@ -3224,6 +3224,11 @@ browserslist@^4.8.3:
     electron-to-chromium "^1.3.349"
     node-releases "^1.1.49"
 
+bs-breakpoints@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/bs-breakpoints/-/bs-breakpoints-1.1.1.tgz#023f0c501059529f6d2647e906cedd656a00b7a9"
+  integrity sha512-lSLbE0L2Nr1yHhukDHc7UIiNoWcKbBLcVNA7QKuHL3w+iNLIo6JlX3tHJWbaLqb/dGKD0xzlPLZ5FKfIMAJbXg==
+
 bs-recipes@1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/bs-recipes/-/bs-recipes-1.3.4.tgz#0d2d4d48a718c8c044769fdc4f89592dc8b69585"