Frontend: Upload .py files through the UI

[Hydraneut]

User Story

As a user
I want to upload .py files through the UI
So that I can easily add Python scripts for prompt

Notes

Users can select and upload .py files via the UI

Acceptance Criteria

• Only .py files are accepted;
• Uploaded files names are shown
• After each prompt the files are cleared

Definition of Done (DoD) Checklist

• Code is tested
• Code is reviewed by a peer
• Code is merged into dev (without braking)
• Code is Documented in the Wiki