Support for setting title/description when embedding projects

[delucis]

When embedding using the SDK, e.g. using sdk.embedGithubProject(...) there is no way to control the title and description for the displayed project.

For projects saved on StackBlitz this can be edited manually, but in cases like GitHub, the title is derived from the file path and there doesn’t appear to be any way to control it. You can theoretically set this with the title and description query parameters on the iframe URL, but setting that as part of the repoPath argument doesn’t work because the internal SDK code then appends ?embed=1 to that, resulting in ?embed=1 being appended to the final query parameter.