Optimize the experience of "code block"

Compared with "lnline code", I can't click "code block" after selecting the written code to make the code appear directly in the neatly formatted graphics. Moreover, the codes formatted by the "code block" cannot be copied one by one but must be copied in full, resulting in difficulties in using these codes.
Snipaste_2023-04-14_19-02-40

Snipaste_2023-04-14_19-02-44

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