fix: support WebSocket protocol and Trusted Types Eval for CSP sources

[ThaUnknown]

could not find an issue which references this problem

currently defining websockets inside CSP directives will throw a type error:

additionally base sources don't support trusted-types-eval, which is part of the spec https://www.w3.org/TR/CSP3/#grammardef-keyword-source
there are also other missing values, however I have not used them, so I don't know how to verify them

this fixes that, its a very minor change

unsure if this should be a fix or a chore, as in theory it doesn't change any runtime behavior, and is only development tooling related

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