Fix issue where large files can be written to exhaust space

**BREAKING CHANGE**
Requires manually editing the config file, or deleting the config file entirely!

api/src/config.js

@@ -102,6 +102,12 @@ const options = [
         default: 2048,
         validators: []
     },
+    {
+        key: 'max_file_size',
+        desc: 'Max file size in bytes for a file',
+        default: 1000000, //1MB
+        validators: []
+    },
     {
         key: 'repo_url',
         desc: 'URL of repo index',