Bug fix: planet stats on crowded maps

Bug fix. On crowded maps, some planets showed only a ship count with no attack, defense or production at all, even where the compact bars or the plain "ADP: 4,5,5" numbers would have fit. The cause was the decorative ring and moon around each starting planet: it was counted as taking up space, so a home planet and every planet near it were pushed all the way down to a bare ship count. The ring no longer counts, so those planets keep full bars, compact bars or the ADP numbers, falling back step by step only when space is actually tight.