feat(GeoGuessr): add missing division badges and improve duel presence format

[barnav1]

Description

Improves Rich Presence for Duels game modes (solo and team, ranked and unranked, old and new UI paths).

Changes:

• Division badge on new /multiplayer/duels and /multiplayer/teams paths — the smallImageKey and division text were only set on the legacy /duels/<id> path. The new matchmaking path now reads the division header from the DOM (with a fallback to the cached soloDivision when the header is hidden mid-game) and applies the correct rank badge for all tiers (Bronze I–IV through Master I–IV, as well as Unranked and Party).
• Two-line presence format for active duels — previously the score was appended directly to details, consuming the mode line. Now:
  • Line 1 (details): <Mode> | <Division> e.g. Moving Duels | Master IV
  • Line 2 (state): Round N | <score> e.g. Round 3 | 5200 - 4800
• Round counter — reads the post-round screen element (round-score_roundNumber__) and displays Round N+1 (the upcoming round). Defaults to Round 1 when health bars are visible but no round element has appeared yet. Resets correctly on URL changes.
• Clean lobby/post-game display — the movement mode prefix (Moving, No Move, etc.) is now only prepended when a game is actively in progress. Lobby and post-game states show the plain Duels / Team Duels label.
• New rank badge assets — added Imgur-hosted images for Bronze I–IV, Silver IV, Gold IV, Master III–IV, Solo Duels, and Team Duels icons to assets.ts.
• Version bump — metadata.json updated from 2.2.0 → 2.3.0.

Acknowledgements

• I read the Activity Guidelines
• I linted the code by running npm run lint
• The PR title follows the repo's commit conventions

Screenshots

Proof showing the creation/modification is working as expected

[dimerp]

🖼️ Activity asset preview

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GeoGuessr (websites/G/GeoGuessr) — update

Preview	Source	URL
	logo	https://cdn.rcd.gg/PreMiD/websites/G/GeoGuessr/assets/logo.png
	thumbnail	https://cdn.rcd.gg/PreMiD/websites/G/GeoGuessr/assets/thumbnail.png
	code (assets.ts)	https://i.imgur.com/AmbABKF.png
	code (assets.ts)	https://i.imgur.com/qfdOO5p.png
	code (assets.ts)	https://i.imgur.com/G2NuNVO.png
	code (assets.ts)	https://i.imgur.com/0xHlqrA.png
	code (assets.ts)	https://i.imgur.com/JUX1ITk.png
	code (assets.ts)	https://i.imgur.com/bLTDFXc.png
	code (assets.ts)	https://i.imgur.com/w8IDLOi.png
	code (assets.ts)	https://i.imgur.com/hwEJGGF.png
	code (assets.ts)	https://i.imgur.com/vyHUTfm.png
	code (assets.ts)	https://i.imgur.com/JIANvyy.png

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