fix: snackbar label width miscomputed when image is set

daniel-dumortier commented 1 year ago

Changes description

In some circumstances, then label of a snackbar with an image can be truncated with '...' characters at the end. It depends on the length of the message, that should be a specific lenght (not too short, not too long), that's why it has not been detected earlier

I took advantage of this PR to add completion on display() and dismiss() methods of VitaminSnackbar as requested by a team that uses the snackbar without the UIViewController extension.

Context

Closes #117

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