After announcing it would close on December 18, Jordan E. Cooper's Ain't No Mo' then extended its run at the Belasco Theatre through December 23. Playwright and star Cooper launched the #SaveAintNoMo campaign following the closing notice, and audiences appear to be showing up. The show earned $499,303 last week and reached 92.96 percent capacity. Also of note: Funny Girl, starring Lea Michele, shattered the al…