(ui) Implement UTXO Selection Modal

[amitx13]

subtask of #689 Aim : (ui) Quick freeze/unfreeze UTXOs from selected source Jar

Description: Users should have the ability to select specific UTXOs when performing a direct-send or participating in a coin-join. This functionality aims to give users greater control over their UTXOs. We will implement a modal that allows users to select specific UTXOs. This modal should open when the user clicks on the source jar, similar to the interface in /wallet within the Jam application.

Objective: Provide a quick and simple way for users to freeze or unfreeze UTXOs. Note that this is not full coin control but a simplified version to meet user needs for basic UTXO management.