Bump fg-loadcss from 2.1.0 to 3.1.0

Bumps [fg-loadcss](https://github.com/filamentgroup/loadCSS) from 2.1.0 to 3.1.0.
- [Release notes](https://github.com/filamentgroup/loadCSS/releases)
- [Commits](filamentgroup/loadCSS@v2.1.0...v3.1.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/package.json

@@ -45,7 +45,7 @@
     "docsearch.js": "^2.6.3",
     "doctrine": "^3.0.0",
     "express": "^4.17.1",
-    "fg-loadcss": "^2.0.1",
+    "fg-loadcss": "^3.1.0",
     "flexsearch": "^0.6.30",
     "fs-extra": "^10.0.0",
     "jss": "^10.0.3",

yarn.lock

@@ -9711,10 +9711,10 @@ fd-slicer@~1.1.0:
   dependencies:
     pend "~1.2.0"
 
-fg-loadcss@^2.0.1:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/fg-loadcss/-/fg-loadcss-2.1.0.tgz#b3cbdf2ab5ee82a13ddb26340f10e3ac43fe2233"
-  integrity sha512-HpvR2uRoKvrYAEwimw+k4Fr2NVHYPfld5Lc/f9uy3mKeUTXhS5urL24XA2rqyq5b2i410EXCLir4Uhsb8J1QaQ==
+fg-loadcss@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/fg-loadcss/-/fg-loadcss-3.1.0.tgz#f7f148dccf8a6899f846a974ed50539880158acb"
+  integrity sha512-UgtXKza8nBUO6UWW4c+MOprRL4W5WbIkzPJafnw6y6f5jhA3FiSZkWz8eXeAeX+mC4A/qq0ByDLiAk6erNARaQ==
 
 figgy-pudding@^3.5.1:
   version "3.5.2"