add 800% zoom option and nearest-neighbor zoom for accuracy

package.json

@@ -87,7 +87,7 @@
         "c9.ide.fontawesome": "#781602c5d8",
         "c9.ide.format": "#5ec97fb083",
         "c9.ide.help.support": "#e95f98f87c",
-        "c9.ide.imgeditor": "#674a0eda0f",
+        "c9.ide.imgeditor": "#b359cf65e7",
         "c9.ide.immediate": "#a962119bec",
         "c9.ide.installer": "#0fde9f0067",
         "c9.ide.mount": "#c4b3a1e4b7",