add gui feature to copy password with TOTP appended

[jimheden]

For use cases where a single field is used to enter both password and TOTP, this would save time.

Testing strategy

Tested manually on Fedora 36

Type of change

• ✅ New feature (change that adds functionality)

[codecov-commenter]

Codecov Report

Merging #8443 (03e18c2) into develop (dd15db7) will increase coverage by 0.08%.
The diff coverage is 10.71%.

❗ Current head 03e18c2 differs from pull request most recent head b8b218e. Consider uploading reports for the commit b8b218e to get more accurate results

@@             Coverage Diff             @@
##           develop    #8443      +/-   ##
===========================================
+ Coverage    64.44%   64.52%   +0.08%     
===========================================
  Files          339      339              
  Lines        43954    43883      -71     
===========================================
- Hits         28325    28315      -10     
+ Misses       15629    15568      -61     

Impacted Files	Coverage Δ
src/gui/DatabaseWidget.cpp	60.37% <0.00%> (-0.99%)	⬇️
src/gui/MainWindow.cpp	71.43% <100.00%> (+0.06%)	⬆️
...rc/fdosecrets/widgets/SettingsWidgetFdoSecrets.cpp	56.06% <0.00%> (-3.03%)	⬇️
src/fdosecrets/dbus/DBusMgr.cpp	52.20% <0.00%> (-1.47%)	⬇️
src/core/Entry.cpp	82.55% <0.00%> (-0.20%)	⬇️
src/gui/DatabaseTabWidget.cpp	64.38% <0.00%> (-0.08%)	⬇️
src/browser/BrowserService.h	100.00% <0.00%> (ø)
src/browser/BrowserAccessControlDialog.cpp	0.00% <0.00%> (ø)
src/browser/BrowserAction.cpp	9.18% <0.00%> (+0.21%)	⬆️
src/core/FileWatcher.cpp	86.75% <0.00%> (+1.20%)	⬆️
... and 1 more

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[droidmonkey]

Can you list more than one website that forces this craziness? I am not a fan of adding this as a feature, it's undiscoverable and used by 0.01%. In the past we recommened you create an Auto-Type window association for this pattern: {PASSWORD}{TOTP}

[jimheden]

I searched for "concatenate your password" and the first two links were sap and ibm, so perhaps useless for most, but quite useful for people who have to use {PASSWORD}{TOTP}

[jimheden]

In my environment it's freeipa, and the clipboard is better than Auto-Type for me as I can share it with VMs.
https://www.freeipa.org/page/V4/OTP#Self-Managed_Tokens

[mpas97]

I've also worked in companies where this was treated as an essential security measure to use topt after password only. Even Apple has created a password manager resources repository recently where there is a main point "Websites Where 2FA Code is Appended to Password".