The "From Token" and "To Token" drop-downs don't change pre-selected token to first available one

[Andrew718PLTS]

Description

The "From Token" and "To Token" drop-downs don't change pre-selected token to first available one from updated dropdown after selecting one of them. Available tokens in both drop-downs are changing by selecting different token from both drop-downs - currently, we're leaving it with previous value.

Steps To Reproduce

1. Navigate to the app
2. Select for instance the "eXOF" token from the "From Token" drop-down
3. Open the "To Token" drop-down
4. Ensure the pre-selected token is not exist in the updated "To Token" dropdown options and can't be exchanged because of missing a token

Expected result

The "From Token" and "To Token" drop-downs change pre-selected token to first available one from updated dropdown after selecting one of them

Actual result

The "From Token" and "To Token" drop-downs don't change pre-selected token to first available one from updated dropdown after selecting one of them

Screenshots

Private Zenhub Video

Additional context

[RyRy79261]

Estimate: 2

Proposed solve:
Bind an effect to the dropdown update which checks if existing selected token is in new list, updating the selected value if token is not present in list.