Figma design for `Prompt templates` UI

[homanp]

Summary

A user should be able to create and save LangChain compatible Prompt templates as per the specification here: https://python.langchain.com/en/latest/modules/prompts/prompt_templates.html

Expected behaviour

• A user should be able to create, update or destroy Prompt templates for further user down-stream in Agents of Chats.
• The prompt template should support inserting variables, as seen in example below:

  
  from langchain import PromptTemplate

template = """ I want you to act as a naming consultant for new companies.

Here are some examples of good company names:

• search engine, Google
• social media, Facebook
• video sharing, YouTube

The name should be short, catchy and easy to remember.

What is a good name for a company that makes {product}? """

prompt = PromptTemplate( input_variables=["product"], template=template, )

## Design inspiration
The app boilerplate looks as follows. Perhaps a list/detail view would be appropriate for this.

<img width="2301" alt="Screenshot 2023-03-27 at 09 52 57" src="https://user-images.githubusercontent.com/2464556/227876609-048a76ce-1b7e-4be5-a60c-ceed6749d02e.png">