doc:it_IT: update I2C summary

Update Italian translation following these changes

commit d77367ff ("docs: i2c: summary: document use of inclusive language")
commit 20738cb9 ("docs: i2c: summary: be clearer with 'controller/target' and 'adapter/client' pairs")
commit 1e926ea1 ("docs: i2c: summary: document 'local' and 'remote' targets")
commit d77367ff ("docs: i2c: summary: document use of inclusive language")
commit a5b88cb9 ("docs: i2c: summary: update speed mode description")
commit 75d148c9 ("docs: i2c: summary: update I2C specification link")
commit d18b822c ("docs: i2c: summary: start sentences consistently.")

Signed-off-by: Federico Vaga <federico.vaga@vaga.pv.it>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240921215729.23796-1-federico.vaga@vaga.pv.it