v0.147.3

Mostly bug fixes here, but also a new template func to get a really big number. You can read about why that is useful in the documentation.

• tpl/tplimpl: Change calls to simple versions of embedded shortcodes 8142699 @jmooring #13700
• config: Fix env override of slices bc98e7a @bep #13707
• Fix/implement cascade for content adapters c745a3e @bep #13692
• commands: Fix description of new theme commands 9d1d8c8 @jmooring #13701
• tpl/tplimpl: Fix vimeo shortcode test to accommodate API changes 84d7a10 @jmooring #13687
• tpl/math: Add MaxInt64 function 325a0db @jmooring #13693