feat: add frontend-component-header and frontend-platform in their NE…

[andrey-canon]

Description

Adds frontend-component-header and frontend-platform in their NELC versions. This basically includes two main features

• Language selector
• LisaAI

Issue # 1271

How to test language selector

1. Checkout this branch
2. Run npm install
3. Run the following commands

export PATH="$(pwd)/node_modules/.bin:$PATH" 
make OPENEDX_ATLAS_PULL=true ATLAS_OPTIONS="--repository=nelc/futurex-translations --revision=open-release/redwood.master" pull_translations

4. Add the following setting MFE_CONFIG["ENABLE_HEADER_LANG_SELECTOR"] = True
5. Verify the language selector component

2025-10-15.11-55-49.mp4

How to test LisaAI

1. Checkout this branch
2. Run npm install
3. Go to studio and check the section schedule an details of any course
4. Add the following setting

MFE_CONFIG_OVERRIDES = {
    "authoring": {
        "LISAN_AI_CLIENT_ID": "your-id",
        "LISAN_AI_ENABLED": True,
    }
}

5. Check any text box

2025-10-15.11-56-20.mp4

[johanseto]

LGTM working lang selector and Lisan in myh teak env.

Lang-Header

Screencast.from.17-10-25.17.16.59.webm

Lisan

Screencast.from.17-10-25.17.17.53.webm