[Designer] Adaptive Cards Editor samples are empty because of Content Seurity Policy

Problem Description

In the Developer Portal's Adaptive Cards Editor: https://dev.teams.microsoft.com/cards/new -- nothing loads in the Pick a sample as a starting point window, opening the Network trace, you will see hundreds of the following errors:

Refused to load the font '<URL>' because it violates the following Content Security Policy directive: "font-src data: *.sharepointonline.com *.akamaihd.net *.microsoft.com"

Refused to connect to 'https://raw.githubusercontent.com/OfficeDev/Microsoft-Teams-Card-Samples/main/samples/catalog.json' because it violates the following Content Security Policy directive: "connect-src *.office.net *.microsoft.com *.office.com *.microsoftonline.com *.office365.com *.msecnd.net *.live.com"

15.4cfd06ca.chunk.js:2 Refused to connect to 'https://raw.githubusercontent.com/OfficeDev/Microsoft-Teams-Card-Samples/main/samples/catalog.json' because it violates the following Content Security Policy directive: "connect-src *.office.net *.microsoft.com *.office.com *.microsoftonline.com *.office365.com *.msecnd.net *.live.com minimavenautosuggestppe.search.windows.net minimavenautosuggest.search.windows.net blob:"

CSP FAIL

Card JSON

{
"N/A": "N/A"
}

Screenshot

No response

Start in the Developer Portal's Adaptive Cards Editor at https://dev.teams.microsoft.com/cards/new and reproduce the empty sample window while reviewing the Network trace. Inspect the Content Security Policy violations for the font requests and the catalog.json fetch from raw.githubusercontent.com; done means the samples load without CSP errors.