<roleDesc> extends into parent <castGroup> and also reaches beyond the edge of the screen

[lehkost]

After fixing <castGroup> described in #358, another small glitch became apparent which relates to multi-level <castGroup> elements: <roleDesc> may extend into a parent <castGroup> bracket and also beyond the edge of the screen. Two examples:

• birch-pfeiffer-die-grille

• schiller-die-verschwoerung-des-fiesco-zu-genua

In the latter example, the <roleDesc> continues after being cut: "Alle Nobili gehen schwarz. Die Tracht ist durchaus altteutsch".

[cmil]

Solved in #362