fix(integrations): update Matrix color to 'currentColor' for better styling consistency (#79)

Author: geoffrey-xiao

src/pages/integrations.astro

@@ -78,7 +78,7 @@ const chatProviders = [
   { name: 'iMessage', icon: bluebubblesIcon, color: '#3B82F6', desc: 'iMessage via BlueBubbles server', docs: 'https://docs.openclaw.ai/channels/bluebubbles' },
   { name: 'Microsoft Teams', icon: 'lucide:users', color: '#6264A7', desc: 'Enterprise support', docs: 'https://docs.openclaw.ai/msteams' },
   { name: 'Nextcloud Talk', icon: siIcon(siNextcloud), color: '#0082C9', desc: 'Self-hosted Nextcloud chat', docs: 'https://docs.openclaw.ai/channels/nextcloud-talk' },
-  { name: 'Matrix', icon: siIcon(siMatrix), color: '#000000', desc: 'Matrix protocol', docs: 'https://docs.openclaw.ai/channels/matrix' },
+  { name: 'Matrix', icon: siIcon(siMatrix), color: 'currentColor', desc: 'Matrix protocol', docs: 'https://docs.openclaw.ai/channels/matrix' },
   { name: 'Nostr', icon: 'lucide:message-circle', color: '#8F2CFF', desc: 'Decentralized DMs via NIP-04', docs: 'https://docs.openclaw.ai/channels/nostr' },
   { name: 'Tlon Messenger', icon: tlonIcon, color: '#FFFFFF', desc: 'P2P ownership-first chat', docs: 'https://docs.urbit.org' },
   { name: 'Zalo', icon: siIcon(siZalo), color: '#0068FF', desc: 'Zalo Bot API', docs: 'https://docs.openclaw.ai/channels/zalo' },