Improve/application parsing

[zenangst]

• Removes special case for adding Finder to the list of applications
• Improves how applications are filtered out from the list of applications

Applications that don't show up on the list are excluded because of the following reasons.

• Their application name includes any of the excluded keywords

let excludeKeywords = [
  "handler", "agent", "migration",
  "problem", "setup", "uiserver",
  "install", "system image", "escrow"]

• The application is lacking an icon
• Uses Electron

[JayBrown]

Question: is it wise to exclude applications without icons? I'm wondering if it's possible to have an application without an icon that's still dark-mode compatible; case in point would be SlowQuitApps: https://github.com/dteoh/SlowQuitApps … or does that exclusion only apply to CoreServices?

[zenangst]

Right now it covers all applications, not just the ones found in CoreServices.
Maybe scoping the filter to that folder would be a good improvement. I'm gonna try that

[zenangst]

@JayBrown refactored the code now, I think it should be good to go.