Bump @phosphor-icons/core from 2.0.8 to 2.1.1

Bumps [@phosphor-icons/core](https://github.com/phosphor-icons/phosphor-core) from 2.0.8 to 2.1.1.
- [Release notes](https://github.com/phosphor-icons/phosphor-core/releases)
- [Commits](https://github.com/phosphor-icons/phosphor-core/commits)

---
updated-dependencies:
- dependency-name: "@phosphor-icons/core"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

kolibri/plugins/perseus_viewer/package.json

@@ -28,7 +28,7 @@
     "@khanacademy/wonder-blocks-typography": "2.1.11",
     "@khanacademy/wonder-blocks-timing": "^5.0.0",
     "@khanacademy/wonder-stuff-core": "^1.5.2",
-    "@phosphor-icons/core": "^2.0.2",
+    "@phosphor-icons/core": "^2.1.1",
     "@popperjs/core": "^2.10.1",
     "aphrodite": "https://github.com/learningequality/aphrodite/",
     "classnames": "^1.1.4",

yarn.lock

@@ -2029,10 +2029,10 @@
     mkdirp "^1.0.4"
     rimraf "^3.0.2"
 
-"@phosphor-icons/core@^2.0.2":
-  version "2.0.8"
-  resolved "https://registry.yarnpkg.com/@phosphor-icons/core/-/core-2.0.8.tgz#dfa056d6187409747ac54a62ca76bae543f803fe"
-  integrity sha512-I9MdTtqjqZDXwo6bbG5lRWZUJMWgXc70hZAVG1OVNVmb6j7039slVXLDH4VEok3U3h1Yhotxe8G5l4sPHJBDzQ==
+"@phosphor-icons/core@^2.1.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@phosphor-icons/core/-/core-2.1.1.tgz#62a4cfbec9772f1a613a647da214fbb96f3ad39d"
+  integrity sha512-v4ARvrip4qBCImOE5rmPUylOEK4iiED9ZyKjcvzuezqMaiRASCHKcRIuvvxL/twvLpkfnEODCOJp5dM4eZilxQ==
 
 "@pkgjs/parseargs@^0.11.0":
   version "0.11.0"