Expand tilde character in create-toolpad-app project path

[JerryWu1234]

Fixes #2704

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[Janpot]

Looking good. I propose to rename getAbsoluteUrl it to bashResolvePath to be a bit more descriptive (it's not a url, and we're enhancing the standard node path.resolve with bash specific functionality) and add a comment with a link to https://www.gnu.org/software/bash/manual/html_node/Tilde-Expansion.html

Also, let's add the function in https://github.com/mui/mui-toolpad/blob/master/packages/toolpad-utils/src/path.ts?

[Janpot]

Thank you