ui(feat): Download output of a function from the UI

[Default2882]

Context

A small feature to download the execution output of a function within an invocation. If the encoder is json a file with .json extension will download, and if the encoder is cloudpickle a file with .bin extension will download. Addresses #1054.

Testing

Download button -

Clicking on the download button -

Viewing the .json file.

Contribution Checklist

• [N/A] If the python-sdk was changed, please run make fmt in python-sdk/.
• [N/A] If the server was changed, please run make fmt in server/.
• [] Make sure all PR Checks are passing.

[Default2882]

@adithyaakrishna @diptanu Created a small PR for UI to view output of a function, please take a look!

[adithyaakrishna]

@Default2882 I added a few comments, otherwise it LGTM :)

[Default2882]

@adithyaakrishna Done, merged your changes!