fix(smartfs): replace smartfile with smartfs, update file reading to use SmartFs, remove GraphicsMagick/Ghostscript dependency checks, bump dev and runtime dependencies, update tests and docs, and adjust npmextra configuration

ts/smartpdf.plugins.ts

@@ -6,7 +6,7 @@ export { http, path };
 
 // @pushrocks
 import * as smartbuffer from '@push.rocks/smartbuffer';
-import * as smartfile from '@push.rocks/smartfile';
+import * as smartfs from '@push.rocks/smartfs';
 import * as smartdelay from '@push.rocks/smartdelay';
 import * as smartpromise from '@push.rocks/smartpromise';
 import * as smartpath from '@push.rocks/smartpath';
@@ -17,7 +17,7 @@ import * as smartjimp from '@push.rocks/smartjimp';
 
 export {
   smartbuffer,
-  smartfile,
+  smartfs,
   smartdelay,
   smartpromise,
   smartpath,