bug(typography): body-medium and body-small line heights are not accessible

### Is this a regression?

- [ ] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

To meet criterion 1.4.12 of WCAG 2.1 https://www.w3.org/WAI/WCAG21/Understanding/text-spacing.html body-medium and body-small type should have higher line heights

Current body-medium line height: 20px
Accessible body-medium line height for the same font size: 22px

Current body-small line height: 16px
Accessible body-small line height for the same font size: 18px

### Expected Behavior

Accessible line heights for default typography

### Actual Behavior

Inaccessible line heights for body-medium and body-small typography

### Environment

- Angular: 18
- Material: 3
- Browser(s): Any
- Operating System (e.g. Windows, macOS, Ubuntu): Any

Non sono indicati file né test. Cerca body-medium e body-small nelle definizioni tipografiche predefinite, quindi verifica come sono impostate attualmente le rispettive altezze di riga. Il lavoro è completato quando body-medium usa 22px e body-small usa 18px e i controlli tipografici pertinenti hanno esito positivo.

Scritto dal modello di indicizzazione a partire dal testo della issue.