Cherry pick for API_LEVEL_1

[xchapron-ledger]

Description

Cherry picks from:

• lib_standard_app fixes #362
• fix: improper use of bzero #367
• CI: Fix codespell #389
• standard_app: allow URL to be defined in app makefile #388
• Xch/crypto helpers #385
• New SDK feature disablers + USB disabler fix with DEBUG builds #397
• Fbe/load script improvements #372
• Format fpu64 trimmed #409

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

❗ No coverage uploaded for pull request base (API_LEVEL_1@71128b6). Click here to learn what that means.
Patch has no changes to coverable lines.

Additional details and impacted files

@@              Coverage Diff               @@
##             API_LEVEL_1     #406   +/-   ##
==============================================
  Coverage               ?   85.96%           
==============================================
  Files                  ?        8           
  Lines                  ?      399           
  Branches               ?        0           
==============================================
  Hits                   ?      343           
  Misses                 ?       56           
  Partials               ?        0           

Flag	Coverage Δ
unittests	85.96% <0.00%> (?)

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