Feature: Update to newer icon codes (pt.1/2)

[Jay-o-Way]

Visually there is no change

Resolved / Related Issues

• Were these changes approved in an issue or discussion with the project maintainers? In order to prevent extra work, feature requests and changes to the codebase must be approved before the pull request will be reviewed. This prevents extra work for the contributors and maintainers.
  Related Bug: Missing icons on Windows 10 #10783

Validation
How did you test these changes?

• Did you build the app and test your changes?
• Did you check for accessibility? You can use Accessibility Insights for this.
• Did you remove any strings from the en-us resource file?
  • Did you search the solution to see if the string is still being used?
• Did you implement any design changes to an existing feature?
  • Was this change approved?
• Are there any other steps that were used to validate these changes?
  1. Open app ...
  2. Click settings button ...

Screenshots (optional)
Add screenshots here.

TO-DO

The following either

• can't find exact replacement, or
• double check context

[Jay-o-Way]

@yaira2 I don't know what's going on here, but there's something seriously going wrong...

[yaira2]

LGTM

[yaira2]

@Jay-o-Way can you resolve the merge conflicts?

[Jay-o-Way]

We're not ready yet. I left a few undone, because I would like for you to double check what they should be replaced with.

[yaira2]

We're not ready yet. I left a few undone, because I would like for you to double check what they should be replaced with.

We can cover those in another PR, can you send them in text form so I can copy/paste?

[Jay-o-Way]

We can cover those in another PR, can you send them in text form so I can copy/paste?

Not sure how that would be easy, but there's another way:
Search in files, query = xE[0-5] with regular expression on