a few more updates

[egonw]

Hi translators, I made a few more edits. One is adding an <iframe> with chemical structures, and another one adding a table with the number of articles about antibodies for a certain virus. The other bits are a bit more involved and have to deal with the dynamic limiting the length of tables. I have isolated the changes to the English pages in single commits, and I hope it is clear how the translation can be updated. I already added the new @limit to some of the translations.

• ja @yayamamo
• es @marvinm2

Updates (please only update the src/ file):

• c861be2#diff-25d902c24283ab8cfbac54dfa101ad31 (antibody paper counts)
• cab585a#diff-25d902c24283ab8cfbac54dfa101ad31 (chem figures)
• f1bc300#diff-25d902c24283ab8cfbac54dfa101ad31
• 09d98b1#diff-25d902c24283ab8cfbac54dfa101ad31