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

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

[github-actions[bot]]

File	Coverage [0%]	:x:
AccountSettingsActivity.kt	0%	:x:

Total Project Coverage	1.01%	:x:

[github-actions[bot]]

File	Coverage [0%]	:x:
AccountSettingsActivity.kt	0%	:x:
AccountDetailsViewModel.kt	0%	:x:

Total Project Coverage	1.01%	:x:

[github-actions[bot]]

File	Coverage [0%]	:x:
AccountSettingsActivity.kt	0%	:x:
AccountDetailsViewModel.kt	0%	:x:
AccountsOverviewFragment.kt	0%	:x:

Total Project Coverage	1.02%	:x:

[github-actions[bot]]

File	Coverage [0%]	:x:
AccountSettingsActivity.kt	0%	:x:
AccountDetailsViewModel.kt	0%	:x:
AccountsOverviewFragment.kt	0%	:x:

Total Project Coverage	1.02%	:x:

[github-actions[bot]]

File	Coverage [0%]	:x:
AccountsOverviewFragment.kt	0%	:x:
ShieldingNoticeDialogFragment.kt	0%	:x:
PassPhraseRecoverViewModel.kt	0%	:x:

Total Project Coverage	1.01%	:x:

[github-actions[bot]]

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

Total Project Coverage	1.01%	:x:

[github-actions[bot]]

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

Total Project Coverage	1.01%	:x: