Relocate and clean up reset.scss of packages/web-forms

## Description
Evaluate the feasibility of cleaning up reset.scss by keeping only what we need and relocating the file to apps/forms.

Some rules in reset.scss were specifically added to override Central's Bootstrap styles. Now that the apps are split, Bootstrap no longer affects Web Forms, meaning some of these defensive styles are obsolete.

The trickiest part will be conducting a highly detailed visual regression test. Because this file establishes the baseline for all styles built over time, we need to be extremely careful that pruning and moving these rules doesn't silently break the UI or alter our component styles.

The test should be completed in:
- Android
- IPhone
- Chrome
- Firefox
- Safari

Inspect packages/web-forms/reset.scss and the apps/forms location, identifying which rules only override Central's Bootstrap styles. Compare the rendered UI before and after any cleanup, then perform visual regression checks on Android, iPhone, Chrome, Firefox, and Safari. Done means the reset is relocated, obsolete rules are removed safely, and component styles remain unchanged.

Written by the indexing model from the issue text.