updates add cosigner flow in collaborative wallet

[Raheel1258]

Addresses:

4342

4462

fixes pills color in dark mode from the list of various minor issues below:

4557

4688

[sonarcloud[bot]]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)
C Reliability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

Catch issues before they fail your Quality Gate with our IDE extension SonarLint