feat(tokens): add new tokens json files (#29525)

Issue number: internal

---------

<!-- Please do not submit updates to dependencies unless it fixes an
issue. -->

<!-- Please try to limit your pull request to one type (bugfix, feature,
etc). Submit multiple pull requests if needed. -->

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Added new structure of JSON files that are generated from Figma
Variables
- Adjusted tokens.js script to correctly translate the new JSON format
- Adjusted tokens usage on components and CSS files
- Added html template to auto-generate html preview based on Design
Tokens (wip)
- Updated snapshots, as some tokens values changed, specially colors.

## Does this introduce a breaking change?

- [x] Yes
- [ ] No

<!--
  If this introduces a breaking change:
1. Describe the impact and migration path for existing applications
below.
  2. Update the BREAKING.md file with the breaking change.
3. Add "BREAKING CHANGE: [...]" to the commit description when merging.
See
https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#footer
for more information.
-->


## Other information

<!-- Any other information that is important to this PR such as
screenshots of how the component looks before and after the change. -->

---------

Co-authored-by: Maria Hutt <thetaPC@users.noreply.github.com>

core/package.json

@@ -77,7 +77,7 @@
     "build.css": "npm run css.sass && npm run css.minify",
     "build.debug": "npm run clean && stencil build --debug",
     "build.docs.json": "stencil build --docs-json dist/docs.json",
-    "build.tokens": "node ./scripts/tokens.js && npm run lint.sass.fix && npm run prettier.tokens",
+    "build.tokens": "node ./scripts/tokens/index.js && npm run lint.sass.fix && npm run prettier.tokens",
     "clean": "node scripts/clean.js",
     "css.minify": "cleancss -O2 -o ./css/ionic.bundle.css ./css/ionic.bundle.css",
     "css.sass": "sass --embed-sources --style compressed src/css:./css",