Prioritize macros above other inline patterns

[benbdeitch]

Closes: internetarchive/openlibrary#9036

Problem:
Currently, including an inline pattern within a macro breaks the whole process; this is untenable, since it means that escaping a character in an argument renders it wholly unworkable.

Solution:
This fix places macros at the beginning of the list of inline patterns, prioritizing them above inline patterns. This has no effect on anything outside of macros, so there should be no negative side effects. Breaking up the {{function()}} pattern into \{\{function()\}\} still allows for the code to be typed, but not executed.

Testing:
Play around with the macros in a custom page. In the live version, escaping a character within the arguments prevents it from working, but it should be functional now.

[cdrini]

Niiiice! Great find! (Also: oh dear infogami has a home-baked markdown renderer...?!?)

I put on testing and tested the page that was previously not working: https://testing.openlibrary.org/collections/nyt-bestsellers and it works now! I also checked some other pages, e.g. subjects, other collections and they seem to be working correctly as well 👍