Check and inform if wallet output descriptor has change addr

[tadeubas]

What is this PR for?

@qlrd noticed while improving tests that an wallet output descriptor without info on change derivation index would show the same addresses as receive index.

• Wallet Descriptor now validates and warns if it was unable to determine change addresses.
• Hide change address menu option when index not available.

Note: this PR is assuming that embit is correct for miniscript, so this embit PR needs to be merged beforehand - diybitcoinhardware/embit#74

Changes made to:

• Code
• Tests
• Docs
• CHANGELOG

What is the purpose of this pull request?

• Bug fix
• New feature
• Docs update
• Other

[odudex]

Neat!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.43%. Comparing base (5362607) to head (66f2c3d).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #561      +/-   ##
===========================================
+ Coverage    95.42%   95.43%   +0.01%     
===========================================
  Files           76       76              
  Lines         8696     8703       +7     
===========================================
+ Hits          8298     8306       +8     
+ Misses         398      397       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[odudex]

diybitcoinhardware/embit#76 has been merged into Embit's develop branch.
Can you fix conflicts on Krux's PR so it can be merged?

[tadeubas]

As I had to fix a conflict, I've also removed \r\n from tests

[odudex]

Thank you!