WAL2-89 Remove shielding

[Radiokot]

Purpose

Remove shielding. The user can still enable and see their shielded balance and history, but to unshield the funds CryptoX Concordium wallet must be used.

Changes

• Visually remove shielding actions (transfer, shield, unshield)
• Add shielding notice popup shown once

Checklist

• My code follows the style of this project.
• The code compiles without warnings.
• I have performed a self-review of the changes.
• I have documented my code, in particular the intent of the
  hard-to-understand areas.
• (If necessary) I have updated the CHANGELOG.

[github-actions]

File	Coverage [0%]	❌
AccountSettingsActivity.kt	0%	❌

Total Project Coverage	1.01%	❌

[github-actions]

File	Coverage [0%]	❌
AccountSettingsActivity.kt	0%	❌
AccountDetailsViewModel.kt	0%	❌

Total Project Coverage	1.01%	❌

[github-actions]

File	Coverage [0%]	❌
AccountSettingsActivity.kt	0%	❌
AccountDetailsViewModel.kt	0%	❌
AccountsOverviewFragment.kt	0%	❌

Total Project Coverage	1.02%	❌

[github-actions]

File	Coverage [0%]	❌
AccountSettingsActivity.kt	0%	❌
AccountDetailsViewModel.kt	0%	❌
AccountsOverviewFragment.kt	0%	❌

Total Project Coverage	1.02%	❌

[github-actions]

File	Coverage [0%]	❌
AccountsOverviewFragment.kt	0%	❌
ShieldingNoticeDialogFragment.kt	0%	❌
PassPhraseRecoverViewModel.kt	0%	❌

Total Project Coverage	1.01%	❌

[github-actions]

File	Coverage [0.35%]	❌
AuthPreferences.kt	4.58%	❌
Session.kt	0%	❌
AccountDetailsActivity.kt	0%	❌
Account.kt	0%	❌
AccountsOverviewViewModel.kt	0%	❌
AccountsOverviewFragment.kt	0%	❌
ShieldingNoticeDialogFragment.kt	0%	❌
PassPhraseRecoverViewModel.kt	0%	❌

Total Project Coverage	1.01%	❌

[github-actions]

File	Coverage [0.23%]	❌
AuthPreferences.kt	4.58%	❌
AccountEncryptedAmount.kt	0%	❌
AccountUpdater.kt	0%	❌
RecoverProcessViewModel.kt	0%	❌
Session.kt	0%	❌
AccountDetailsActivity.kt	0%	❌
Account.kt	0%	❌
AccountsOverviewViewModel.kt	0%	❌
AccountsOverviewFragment.kt	0%	❌
ShieldingNoticeDialogFragment.kt	0%	❌
PassPhraseRecoverViewModel.kt	0%	❌

Total Project Coverage	1.01%	❌