- This commit temporarily disables the MaxAmount button in the `SwapInputPanel` and `SendModal` components.
- The MaxAmount button will be reintroduced with the correct behavior in issue #15709 for the 2.31 release.
closes: #15710
- create new dedicated (asset) token selector component
- integrate it into `SwapInputPanel` and `SwapModal`
- add respective SB page and QML tests suite
Fixes#14783
- new panel created: `SwapInputPanel`
- some cleanups to the needed stores
- created a SB page demonstrating the use of 2 panels and the
`SwapExchangeButton`
- created QML tests
Fixes#14781