Fix can not upload and download files, by changing back to Node.js 12.19.0 and adding fast-render.

Current file storing to MongoDB code was not yet compatible with newer Node.js.

Thanks to eskogito and xet7 !

Fixes #3320

.meteor/packages

@@ -145,3 +145,4 @@ rajit:bootstrap3-datepicker-vi
 rajit:bootstrap3-datepicker-zh-cn
 rajit:bootstrap3-datepicker-zh-tw
 hot-module-replacement
+staringatlights:fast-render

.meteor/versions

@@ -42,6 +42,7 @@ cfs:tempstore@0.1.6
 cfs:upload-http@0.0.20
 cfs:worker@0.1.5
 check@1.3.1
+chuangbo:cookie@1.1.0
 coagmano:stylus@1.1.0
 coffeescript@2.4.1
 coffeescript-compiler@2.4.1
@@ -199,6 +200,7 @@ reload@1.3.0
 retry@1.1.0
 routepolicy@1.1.0
 rzymek:fullcalendar@3.8.0
+server-render@0.3.1
 service-configuration@1.0.11
 session@1.2.0
 sha@1.0.9
@@ -215,6 +217,8 @@ spacebars-compiler@1.1.3
 srp@1.1.0
 standard-minifier-css@1.7.0-beta200.3
 standard-minifier-js@2.6.0
+staringatlights:fast-render@3.3.0
+staringatlights:inject-data@2.3.0
 steffo:meteor-accounts-saml@0.0.18
 tap:i18n@1.8.2
 templates:tabs@2.3.0