diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index 615b900..669972e
--- a/yarn.lock
+++ b/yarn.lock
@@ -2420,15 +2420,6 @@ cli-boxes@^2.2.0:
   resolved "https://registry.yarnpkg.com/cli-boxes/-/cli-boxes-2.2.0.tgz#538ecae8f9c6ca508e3c3c95b453fe93cb4c168d"
   integrity sha512-gpaBrMAizVEANOpfZp/EEUixTXDyGt7DFzdK5hU+UbWt/J0lB0w20ncZj59Z9a93xHb9u12zF5BS6i9RKbtg4w==
 
-clipboard@^2.0.0:
-  version "2.0.6"
-  resolved "https://registry.yarnpkg.com/clipboard/-/clipboard-2.0.6.tgz#52921296eec0fdf77ead1749421b21c968647376"
-  integrity sha512-g5zbiixBRk/wyKakSwCKd7vQXDjFnAMGHoEyBogG/bw9kTD9GvdAvaoRR1ALcEzt3pVKxZR0pViekPMIS0QyGg==
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 cliui@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/cliui/-/cliui-5.0.0.tgz#deefcfdb2e800784aa34f46fa08e06851c7bbbc5"
@@ -3168,11 +3159,6 @@ delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "http://registry.npm.taobao.org/delayed-stream/download/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/delegate/-/delegate-3.2.0.tgz#b66b71c3158522e8ab5744f720d8ca0c2af59166"
-  integrity sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==
-
 delegates@^1.0.0:
   version "1.0.0"
   resolved "http://registry.npm.taobao.org/delegates/download/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
@@ -4201,6 +4187,11 @@ gensync@^1.0.0-beta.1:
   resolved "https://registry.yarnpkg.com/gensync/-/gensync-1.0.0-beta.1.tgz#58f4361ff987e5ff6e1e7a210827aa371eaac269"
   integrity sha512-r8EC6NO1sngH/zdD9fiRDLdcgnbayXah+mLgManTaIZJqEC1MZstmnox8KpnI2/fxQwrp5OpCOYWLp4rBl4Jcg==
 
+get-browser-rtc@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/get-browser-rtc/-/get-browser-rtc-1.1.0.tgz#d1494e299b00f33fc8e9d6d3343ba4ba99711a2c"
+  integrity sha512-MghbMJ61EJrRsDe7w1Bvqt3ZsBuqhce5nrn/XAwgwOXhcsz53/ltdxOse1h/8eKXj5slzxdsz56g5rzOFSGwfQ==
+
 get-caller-file@^2.0.1:
   version "2.0.5"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-2.0.5.tgz#4f94412a82db32f36e3b0b9741f8a97feb031f7e"
@@ -4403,13 +4394,6 @@ globule@^1.0.0:
     lodash "~4.17.4"
     minimatch "~3.0.2"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/good-listener/-/good-listener-1.2.2.tgz#d53b30cdf9313dffb7dc9a0d477096aa6d145c50"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 got@^9.6.0:
   version "9.6.0"
   resolved "https://registry.yarnpkg.com/got/-/got-9.6.0.tgz#edf45e7d67f99545705de1f7bbeeeb121765ed85"
@@ -7199,11 +7183,9 @@ pretty-time@^1.1.0:
   integrity sha512-28iF6xPQrP8Oa6uxE6a1biz+lWeTOAPKggvjB8HAs6nVMKZwf5bG++632Dx614hIWgUPkgivRfG+a8uAXGTIbA==
 
 prismjs@^1.13.0:
-  version "1.22.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.22.0.tgz#73c3400afc58a823dd7eed023f8e1ce9fd8977fa"
-  integrity sha512-lLJ/Wt9yy0AiSYBf212kK3mM5L8ycwlyTlSxHBAneXLR0nzFMlZ5y7riFPF3E33zXOF2IH95xdY5jIyZbM9z/w==
-  optionalDependencies:
-    clipboard "^2.0.0"
+  version "1.27.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.27.0.tgz#bb6ee3138a0b438a3653dd4d6ce0cc6510a45057"
+  integrity sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==
 
 private@^0.1.8:
   version "0.1.8"
@@ -7806,11 +7788,6 @@ select-hose@^2.0.0:
   version "2.0.0"
   resolved "http://registry.npm.taobao.org/select-hose/download/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/select/-/select-1.1.2.tgz#0e7350acdec80b1108528786ec1d4418d11b396d"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 selfsigned@^1.10.7:
   version "1.10.7"
   resolved "https://registry.yarnpkg.com/selfsigned/-/selfsigned-1.10.7.tgz#da5819fd049d5574f28e88a9bcc6dbc6e6f3906b"
@@ -8605,11 +8582,6 @@ timsort@^0.3.0:
   resolved "https://registry.yarnpkg.com/timsort/-/timsort-0.3.0.tgz#405411a8e7e6339fe64db9a234de11dc31e02bd4"
   integrity sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=
 
-tiny-emitter@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/tiny-emitter/-/tiny-emitter-2.1.0.tgz#1d1a56edfc51c43e863cbb5382a72330e3555423"
-  integrity sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==
-
 to-arraybuffer@^1.0.0:
   version "1.0.1"
   resolved "http://registry.npm.taobao.org/to-arraybuffer/download/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"