npm trim vulnerability

[schaefsteven]

decap-cms-app currently has a vulnerable dependency - "trim"
For now I am overriding it in package.json:

  "overrides": {
    "trim": "1.0.1"
  },

But it looks like decap is working to fix the issue: decaporg/decap-cms#6513
Once they fix the issue we'll probably want to remove the override.

[schaefsteven]

Turns out we don't need to install decap with npm in order to use local server, so this is now not necessary. Using the CDN instead.