diff --git a/package-lock.json b/package-lock.json
index cb1e1ae..6f7a462 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1179,6 +1179,7 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -3416,7 +3417,7 @@
     "decode-uri-component": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/decode-uri-component/-/decode-uri-component-0.2.0.tgz",
-      "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
+      "integrity": "sha512-hjf+xovcEn31w/EUYdTXQh/8smFL/dzYjohQGEIgjyNavaJfBY2p5F527Bo1VPATxv0VYTUC2bOcXvqFwk78Og==",
       "dev": true
     },
     "deep-equal": {
@@ -4774,6 +4775,7 @@
       "resolved": "https://registry.npmjs.org/fstream/-/fstream-1.0.11.tgz",
       "integrity": "sha1-XB+x8RdHcRTwYyoOtLcbPLD9MXE=",
       "dev": true,
+      "optional": true,
       "requires": {
         "graceful-fs": "4.1.11",
         "inherits": "2.0.3",
@@ -6699,13 +6701,15 @@
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           "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.35.0.tgz",
           "integrity": "sha512-JWT/IcCTsB0Io3AhWUMjRqucrHSPsSf2xKLaRldJVULioggvkJvggZ3VXNNSRkCddE6D+BUI4HEIZIA2OjwIvg==",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.19",
           "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.19.tgz",
           "integrity": "sha512-P1tKYHVSZ6uFo26mtnve4HQFE3koh1UWVkp8YUC+ESBHe945xWSoXuHHiGarDqcEZ+whpCDnlNw5LON0kLo+sw==",
           "dev": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.35.0"
           }
@@ -7162,7 +7166,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.4.0",
@@ -7763,13 +7768,15 @@
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           "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.35.0.tgz",
           "integrity": "sha512-JWT/IcCTsB0Io3AhWUMjRqucrHSPsSf2xKLaRldJVULioggvkJvggZ3VXNNSRkCddE6D+BUI4HEIZIA2OjwIvg==",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.19",
           "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.19.tgz",
           "integrity": "sha512-P1tKYHVSZ6uFo26mtnve4HQFE3koh1UWVkp8YUC+ESBHe945xWSoXuHHiGarDqcEZ+whpCDnlNw5LON0kLo+sw==",
           "dev": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.35.0"
           }
@@ -9289,7 +9296,8 @@
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           "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
           "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "yargs": {
           "version": "7.1.0",