New feature: Ability to customize/edit the organizations information

[sebastiangaertner]

We need a module within the admin panel that allows the following

edit of Organization name (posissibly should require admin confirmation/review)
add/edit of organization orimary map name
upload/edit/delete of organization logo
upload/edit/delete of organization cover image
add/edit/delete of organizations about text
add/edit/delete of organizations mission statement

add/edit/delete of organizations URL
add/edit/delete of organizations contact email
add/edit/delete of organizations social handlers

Some or these fields exists in the webmap_config but they should be part of the stakeholder schema.

Backend needs to add or rather migrate the about us, mission, logo_url, cover_image_url etc.

[sebastiangaertner]

@shubhamk008 can the design lab start working on this. I believe its a straight forward UX/UI requirement. Thanks!