Update API_LEVEL_19

[abonnaudet-ledger]

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)
• Tests
• Documentation
• Other (for changes that might not fit in any category)

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 53.33333% with 7 lines in your changes are missing coverage. Please review.

❗ No coverage uploaded for pull request base (API_LEVEL_19@cc600aa). Click here to learn what that means.

Files	Patch %	Lines
lib_nbgl/src/nbgl_fonts.c	53.33%	7 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##             API_LEVEL_19     #663   +/-   ##
===============================================
  Coverage                ?   60.47%           
===============================================
  Files                   ?       12           
  Lines                   ?     1723           
  Branches                ?        0           
===============================================
  Hits                    ?     1042           
  Misses                  ?      681           
  Partials                ?        0           

Flag	Coverage Δ
unittests	60.47% <53.33%> (?)

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[lpascal-ledger]

Contains:

• Keep pointer for nbgl_layoutAddKeypad (LNX/LNS+) #634
• lib_nbgl: Minor comments fix #638
• Clean-up unused string ids propagation for screenshots generation #653