[Feature]: Template system for UI

[Mte90]

The Feature

Right now if I want to customize the css as example I need to edit this python file

litellm/litellm/proxy/common_utils/admin_ui_utils.py

Line 36 in 0eec1d8

<title>LiteLLM Login</title>

Also you need to modify react files and recompile in case

litellm/ui/litellm-dashboard/src/components/teams.tsx

Line 484 in 1f4ea88

<Title level={4}>All Teams</Title>

Motivation, pitch

Customizing the template that is HTML but also CSS it is important to self hosting and the feature provided for the enterprise is not enough so much.
Also if I want to change the text on the login as example...

Are you a ML Ops Team?

No

Twitter / LinkedIn details

No response

[krrishdholakia]

Hey @Mte90 this is a great idea. Would you be open to contributing a PR for this?

Here's how to make UI contributions - https://docs.litellm.ai/docs/contributing