dialer: Work around GtkGrid row homogeneity
Puts the buttons into a vertical size group rather than making the rows homogeneous. This prevents a bug from GtkGrid to make the buttons too tall when the action buttons are hidden.
Fixes #130 (closed)
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Puts the buttons into a vertical size group rather than making the rows homogeneous. This prevents a bug from GtkGrid to make the buttons too tall when the action buttons are hidden.
Fixes #130 (closed)