feat(media_data): add info about most currently used sources in kite

[GiorgioBrux]

This PR adds metadata for most news sources currently active in Kite's feeds.

Unused media entries have been removed to optimize the client-side payload. Previous entries remain accessible in the commit history if needed for future use.

• [x] World
• [x] USA
• [x] Business
• [x] Technology
• [x] Science
• [x] Sports
• [x] Gaming
• [x] Bay Area
• [x] Linux & OSS
• [x] Cryptocurrency
• [x] Germany
• [x] Italy

These categories are planned for a later time:

• Europe
• UK
• Brazil
• Australia
• Estonia
• Mexico
• Canada
• Thai
• Vermont

[vprelovac]

Great job! Can you make sure some staples like aljazeera, france24, rt.com are covered in the db first

[vprelovac]

Good to merge?

[GiorgioBrux]

Good to merge?

Cleaning up some stuff and we should be good!

[GiorgioBrux]

Should be ready to merge now :)

[vprelovac]

Amazing work!