GUI support to filter wallet accounts by coin type

[olemis]

Feature description

Categorize wallet accounts by coin type

Is your feature request related to a problem? Please describe. No GUI elements for altcoin specific accounts

Describe the solution you'd like Once different plugins will be added many altcoins get supported and it is necessary to filter them by coin type.

Additional context Needs space for coin icon.

Possible implementation

• [ ] Feature mockups
• [ ] Implement filter GUI controls and update wallet list accordingly