fix: Signing on Polkadot CC1 (#629)

* fix: signing on polkadot, adjust with polkadot js

* add polkadot e2e test

* fix e2e polkadot signing test

* bump version to 4.3

* fix passworded signing problem and add e2e passworded test

* refine message details view
2 jobs for master in 3 minutes and 33 seconds
Status Job ID Name Coverage
  Test
passed #528652
linux-docker
android-test

00:02:02

 
  Build
failed #528653
linux-docker
android-build

00:01:30

 
Name Stage Failure
failed
android-build Build
[1/5] Validating package.json...
[2/5] Resolving packages...
[3/5] Fetching packages...
error chalk@4.0.0: The engine "node" is incompatible with this module. Expected version ">=10". Got "8.17.0"
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
error Found incompatible module.
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1