Set bold/italics icons for cs/he/pl; da/no/nn/sv

Per bug 51330, cs (Czech), he (Hebrew) and pl (Polish) should use the same icons
as English (B for bold, I for italics), rather than the generic As; da (Danish),
no (Norwegian Bokmål), nn (Norwegian Nynorsk) and sv (Swedish) should use those
that German (F for bold, K for italics).

Bug: 51330
Change-Id: I1d5937bed658d45ba6a18d8eb77e9e20d55a16cc
Merge "Set bold/italics icons for cs/he/pl; da/no/nn/sv"