Update Aliascolortoken interface (#2441)

### Platforms Impacted
- [x] iOS
- [x] macOS
- [x] win32 (Office)
- [x] windows
- [x] android

### Description of changes

In preparation of adding iOS alias color tokens, updating the existing AliasColorTokens interface to specify which platforms each token is on, make all the properties optional (there are only 30 tokens that are currently defined on all platforms, and that still seems to be changing) and also reorganized the tokens into the following:

// Foreground
1. Neutralforeground 1-4
2. Neutralforegrounddisabled
3. Neutralforegroundoncolor and onboard
4. Neutralforegroundinverted
5. Brandforegroundlink
6. Compoundbrandforeground
7. Brandforeground 1 and 2
8. Brandforegroundtint
9. Brandforegrounddisabled

// Background
10. Neutralbackground 1-6
11. Neutralbackground other
12. Subtle background
13. Transparent background
14. Brandbackground

// Stroke
15. Neutralstroke
16. Stroke focus
17. Brand stroke
18. Transparent stroke

// Red
16. Red background/foreground/border

Changes are split up by commit.

### Verification

There are no functional changes in this PR - no properties were removed/added to this interface.

### Pull request checklist

This PR has considered (when applicable):
- [ ] Automated Tests
- [ ] Documentation and examples
- [ ] Keyboard Accessibility
- [ ] Voiceover
- [ ] Internationalization and Right-to-left Layouts

Author: lyzhan7

change/@fluentui-react-native-theme-types-17b64322-c435-48fb-aca3-3d6372391aab.json

@@ -0,0 +1,7 @@
+{
+  "type": "patch",
+  "comment": "List platforms each token is defined on",
+  "packageName": "@fluentui-react-native/theme-types",
+  "email": "[email protected]",
+  "dependentChangeType": "patch"
+}