Add support standard keyboard shortcuts, such as Ctrl + S

[VMelnalksnis]

Is your feature request related to a problem? Please describe.
When manually entering transfers or purchases, there are many optional fields that need to be tabbed through to get to the save button. While the data can be entered using only the keyboard, it is quite slow, and it's hard to memorize the count of tabs needed, as it depends on the remaining optional field count.

Describe the solution you'd like
All data entry forms should support standard keyboard shortcuts such as Ctrl + S.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Would be also great to support other standard shortcuts, such as F5 for refresh, see https://en.wikipedia.org/wiki/Table_of_keyboard_shortcuts

[VMelnalksnis]

The built-in Hotkey solution does not handle multiple controls binding to the same keys well - it only executes one of the commands, silently skipping all others. That means that it's not possible to simply add Hotkey="Ctrl+S" to all save buttons, since it will only trigger one (first?). Some solution will be needed which triggers the correct control/command based on currently focused control.