- 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
- It adds link to the corresponding tokens model in `EditCommunityTokenView`.
- It adds validation for `name` and `symbol`.
- It updates `storybook accordingly.`
Closes#12365
It creates new `TokensStore` that will provide all needed token models for all app sections:
- sourcesOfTokensModel
- flatTokensModel
- tokensBySymbolModel
Lukáš Tinkl
Stefan
Cuteivist
Anthony Laibe
Khushboo Mehta
Noelia