[MWPW-133513] FR toolbar title case fix

[qiyundai]

Please always provide the JIRA issue(s) your PR is for, as well as test URLs where your change can be observed (before and after):

Fix MWPW-133513

Description:
Fix mistakenly hard-lowercased FR words in grammar template

Test URLs:

• Before: https://main--express-website--adobe.hlx.page/fr/express/templates/?lighthouse=on
• After: https://mwpw-133513--express-website--wbstry.hlx.page/fr/express/templates/?lighthouse=on

[aem-code-sync]

Hello, I'm Franklin Bot and I will run some test suites that validate the page speed.
In case there are problems, just click the checkbox below to rerun the respective action.

• Re-run PSI Checks

[aem-code-sync]

Page	Scores	Audits	Google
//fr/express/templates/?lighthouse=on		Lighthouse returned error: ERRORED_DOCUMENT_REQUEST. Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Status code: 400)

[aem-code-sync]

Page	Scores	Audits	Google
/fr/express/templates/?lighthouse=on