remove vendored clipboard library in favor of package.json entry

app/assets/javascripts/copy_to_clipboard.js

 /* eslint-disable func-names, space-before-function-paren, one-var, no-var, one-var-declaration-per-line, prefer-template, quotes, no-unused-vars, prefer-arrow-callback, max-len */
 
-import Clipboard from 'vendor/clipboard';
+import Clipboard from 'clipboard';
 
 var genericError, genericSuccess, showTooltip;
 

package.json

@@ -26,6 +26,7 @@
     "bootstrap-sass": "^3.3.6",
     "brace-expansion": "^1.1.8",
     "classlist-polyfill": "^1.2.0",
+    "clipboard": "^1.7.1",
     "compression-webpack-plugin": "^1.0.0",
     "copy-webpack-plugin": "^4.0.1",
     "core-js": "^2.4.1",

yarn.lock

@@ -1296,6 +1296,14 @@ clipboard@^1.5.5:
     select "^1.1.2"
     tiny-emitter "^1.0.0"
 
+clipboard@^1.7.1:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-1.7.1.tgz#360d6d6946e99a7a1fef395e42ba92b5e9b5a16b"
+  dependencies:
+    good-listener "^1.2.2"
+    select "^1.1.2"
+    tiny-emitter "^2.0.0"
+
 cliui@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
@@ -2883,7 +2891,7 @@ globby@^6.1.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
-good-listener@^1.2.0:
+good-listener@^1.2.0, good-listener@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
   dependencies:
@@ -6119,6 +6127,10 @@ tiny-emitter@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-1.1.0.tgz#ab405a21ffed814a76c19739648093d70654fecb"
 
+tiny-emitter@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.0.2.tgz#82d27468aca5ade8e5fd1e6d22b57dd43ebdfb7c"
+
 tmp@0.0.31, tmp@0.0.x:
   version "0.0.31"
   resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.31.tgz#8f38ab9438e17315e5dbd8b3657e8bfb277ae4a7"