langpacks: update according to [7800], [7802]

git-svn-id: http://svn.miranda-ng.org/main/trunk@7805 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
- retrieving default font name from Windows themes;
- set Webdings as the default font name for tabSRMM font #17;

git-svn-id: http://svn.miranda-ng.org/main/trunk@7806 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c