Feature Request : Export the transaction between 2 people

[ThunderE75]

An option to export transactions made between people and how they were split in a csv or pdf format

[KMKoushik]

we already export transaction of a user and group, this will be a subset of it.

• We already have a function a route to get expenses with friends here
• Just need a frontend changes where we download data in csv format. check this example https://github.com/oss-apps/split-pro/blob/main/src/pages/account.tsx#L34

lemme know if anyone wants to work on this