[Typography] Manage the new medium font weight

[pylapp]

Description

With the release of the new semantic tokens library (#395), a new font weight must be managed: medium.

This new weight must be applied to the 2 references: body and label

Details

Below verbatims of @MaximeTonnerre:

Definition of Ready

• Implement new tokens library ([Tokens] Integration of core and system tokens v1.6 #395)

Definition of Done

• Manage the Helvetica Neue font with 65 medium weight
• Implement the new typographies

Related issue:

Update Topography in component that where is defined, can you please update issue related to this modification @MaximeTonnerre @TonyAntonyHello @jerome-regnier