fix: deleting all keys breaks Create and Share action

[ericleponner]

Description:
Changes below fix Sign and Execute and Create and Share behavior when no key is setup.
In this case, both actions display a modal dialog to give instructions to user and a button to navigate to Settings / Keys.

When needed, Sign and Execute and Create and Share action save transaction draft before navigating to Settings.

Related issue(s):

Fixes #2244

Notes for reviewers:

A   front-end/src/renderer/components/Transaction/TransactionProcessor/components/CheckKeySettingHandler.vue
M   front-end/src/renderer/components/Transaction/TransactionProcessor/TransactionProcessor.vue
    # CheckKeySettingHandler is a new handler executed first by TransactionProcessor.
    # When props.hasDataChanged, CheckKeySettingHandler saves transaction draft using props.saveDraft

M   front-end/src/renderer/components/Transaction/Create/BaseTransaction/BaseTransaction.vue
    # Now provides hasDataChanged and saveDraft props to TransactionProcessor so that
    # CheckKeySettingHandler can save draft when required

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.89%. Comparing base (a349d15) to head (c4774ea).
⚠️ Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2241      +/-   ##
==========================================
- Coverage   99.90%   99.89%   -0.01%     
==========================================
  Files         112      178      +66     
  Lines        3171     6828    +3657     
  Branches      511     1301     +790     
==========================================
+ Hits         3168     6821    +3653     
- Misses          3        7       +4     

see 66 files with indirect coverage changes

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[svienot]

LGTM