fix: replace broken docs-creator and docs-player repo refs

[decentraland-bot]

Fix 35 broken GitHub links across 23 files, all caused by references to two non-existent repository names (docs-creator and docs-player) that should point to decentraland/docs.

Changes

• Replaced all github.com/decentraland/docs-creator/blob/main/ links with github.com/decentraland/docs/blob/main/ (30 occurrences in 22 files across English creator/ and Spanish creator-esp/ directories)
• Replaced all github.com/decentraland/docs-player/blob/main/ links with github.com/decentraland/docs/blob/main/ (5 occurrences in player-spa/introduction/about-decentraland.md)
• Fixed garbled doubled path in uploading-smart-wearables.md (both EN and ES) to point to the correct creating-a-collection.md
• Fixed malformed WeMeta URL in scene-analytics.md (both EN and ES) to point to https://docs.wemeta.world

Verification

grep -r "docs-creator\|docs-player" --include="*.md" returns 0 results after the fix.

Closes #107

Requested by Dawid Krajewski via Slack