Cannot set properties of undefined (setting 'triple-quoted-string') TypeError: Cannot set properties of undefined

Describe the bug
The latest version introduced a regression bug with prism. The 2.1.2 doesn't have this issue

Additional context
Cannot set properties of undefined (setting 'triple-quoted-string') TypeError: Cannot set properties of undefined (setting 'triple-quoted-string') at Object.extend (webpack-internal:///./node_modules/prismjs/prism.js:345:16) at eval (webpack-internal:///./node_modules/prismjs/components/prism-scala.js:1:41) at ./node_modules/prismjs/components/prism-scala.js ([https://localhost:3000/vendors-node_modules_mui_icons-material_Add_js-node_modules_mui_icons-material_Done_js-node_m-72c075.bundle.js:2299:1](vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)) at webpack_require ([https://localhost:3000/main.bundle.js:5618:33](vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)) at fn ([https://localhost:3000/main.bundle.js:5911:21](vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/code/electron-sandbox/workbench/workbench.html)) at eval (webpack-internal:///./node_modules/redoc/bundles/redoc.browser.lib.js:41:13084) at eval (webpack-internal:///./node_modules/redoc/bundles/redoc.browser.lib.js:1819:3806) at eval (webpack-internal:///./node_modules/redoc/bundles/redoc.browser.lib.js:1819:3811) at eval (webpack-internal:///./node_modules/redoc/bundles/redoc.browser.lib.js:2:37) at eval (webpack-internal:///./node_modules/redoc/bundles/redoc.browser.lib.js:2:43)

The error is introduced in https://github.com/Redocly/redoc/releases/tag/v2.1.3 intentionally in https://github.com/Redocly/redoc/commit/4fc6aa0859c94e25fd30c4a4250455e44cc76488

Compare Redoc v2.1.2 with v2.1.3 and inspect commit 4fc6aa0859c94e25fd30c4a4250455e44cc76488, focusing on Prism's prism.js and prism-scala.js loading shown in the stack trace. Reproduce the failure with Scala syntax highlighting and confirm that the TypeError about triple-quoted-string no longer occurs.