don't minify plugins

Summary: The minifier removed `debugger` statements from the plugins. We don't need to minify the plugins, because we don't care about bundle size, so we can just disable minification for plugins.

Reviewed By: alangenfeld

Differential Revision: D10334694

fbshipit-source-id: 0b3e23db107f960a3dbeb6a79aa24bacca41c230

static/compilePlugins.js

@@ -173,6 +173,7 @@ async function compilePlugin(
           out,
           dev: false,
           sourceMap: true,
+          minify: false,
         },
       );
     } catch (e) {