feat(docs): add the new logo, a press kit and a reworked home page

[erkamyaman]

What and why

The logo picked in #210 replaces the old one everywhere, the docs get a press kit, and the docs home page is reworked.

• Logo: docs header (static mark, light and dark), favicon (theme-aware mark, PNG and ICO fallbacks), social card, the panel header and favicon, the hub and devframe icon, the in-page popup button, the Chrome extension icons and the README (animated app icon).
• Press kit (/press-kit, linked from the footer and README): every logo variant as SVG and PNG including the animated ones, social images, brand colors, name and logo usage, ready-to-paste descriptions, real panel screenshots and one zip. scripts/press-kit.mjs rebuilds the zip and screenshots.
• Home page: a three-line title "Angular devtools for you and your agent", the MCP .mcp.json in a code card, the WORKS WITH badges as one consistent set (local logos, docs links), a Why Pangular section, a Ways to run tab section (in your app, Chrome extension, CLI, MCP, static report) with our own code card theme, and "Built on Devframe" and "Docs built with NgMd" credits.
• Theme: dark by default; the auto option is gone.
• Footer: icon links like devframe's (press kit, sponsor, Discord, GitHub).

Closes #213

How it was verified

• pnpm commit:check
• Prettier on every changed file
• pnpm typecheck and ngc for the docs app
• pnpm test:devtools and pnpm test:panel
• pnpm skills:check
• pnpm docs:build
• pnpm extension:build and extension/ui committed
• pnpm test:axe, plus axe on the docs home, introduction, press kit and footer in dark and light at desktop and phone widths