Translate labeled UI Schema elements

[sdirix]

Is your feature request related to a problem? Please describe.

Users generally not only want to translate their schema labels, but also UI Schema labels

Describe the solution you'd like

The core library should invoke the already existing translation support also for UI Schema elements, e.g. Group, Categorization and Label.

These translated labels need to be handed over in the respective bindings.

Examples:

---

type: Group
label: "My label"

should invoke the translator function

t('My label', 'My label', { uischema });

---

type: Group
label: "My label"
i18n: "my.group.key"

should invoke the translator function

t('my.group.key.label', 'My label', { uischema });

---

type: Group
i18n: "my.group.key"

should invoke the translator function

t('my.group.key.label', undefined, { uischema });

---

type: Group
label: false
i18n: "my.group.key"

should not invoke the translator function for the label

---

type: "Label"
text: "my.text"
i18n: "my.label.key"

should invoke the translator function

t('my.label.key.text', 'my.text', { uischema });

Describe alternatives you've considered

None

Framework

Core

RendererSet

Other (please specify in the Additional context field)

Additional context

No response