Closes: #8647 Closes: #8649 **Changes & Why** 1. Added a Search Input to `SettingsDataModelFieldAddressForm` & `SettingsDataModelFieldCurrencyForm` as `Select` component already accepts it as a prop. 2. Gave a fixed width to the dropdown of both the above components to ensure it doesn't shrink on search for the menu items with low word count. 3. Added countries Flag to `SettingsDataModelFieldAddressForm`. 4. Replaced `MenuItem` with `MenuItemSelect` to get the desired highlighted background for the selected item with `IconCheck` to differentiate the current selected item. This is useful across all the select components throughout the app. 5. I realized that in some components we might not need IconCheck and only need a highlighted background for the selected item. For ex: `SettingsDataModelFieldBooleanForm` . Therefore, I created a prop `needIconCheck` with default as true so it doesn't break the existing `MenuItemSelect` and we can pass that prop as false wherever needed. [Screencast from 2024-12-21 12-08-08.webm](https://github.com/user-attachments/assets/4f8070a8-f339-4556-a137-bbbad58b171c)