Bug 1017018 - [Messages] Bug 963018 regresses the localizability of the "To:" string in the recipient panel. "To" and "Menu" blocks were made non-shrinkable. r=schung
Merge pull request #19906 from azasypkin/bug-1017018-to-localize

Bug 1017018 - [Messages] Bug 963018 regresses the localizability of the "To:" string in the recipient panel. "To" and "Menu" blocks were made non-shrinkable. r=schung