Update docs (#2222)

docs/open-source/graph_memory/features.mdx

@@ -1,6 +1,8 @@
 ---
 title: Features
 description: 'Graph Memory features'
+icon: "list-check"
+iconType: "solid"
 ---
 
 Graph Memory is a powerful feature that allows users to create and utilize complex relationships between pieces of information.

docs/open-source/graph_memory/overview.mdx

@@ -1,6 +1,8 @@
 ---
 title: Overview
 description: 'Enhance your memory system with graph-based knowledge representation and retrieval'
+icon: "database"
+iconType: "solid"
 ---
 
 Mem0 now supports **Graph Memory**.

docs/open-source/multimodal-support.mdx

@@ -1,5 +1,7 @@
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 title: Multimodal Support
+icon: "image"
+iconType: "solid"
 ---
 
 Mem0 extends its capabilities beyond text by supporting multimodal data, including images. Users can seamlessly integrate images into their interactions, allowing Mem0 to extract pertinent information from visual content and enrich the memory system.

docs/open-source/quickstart.mdx

@@ -1,6 +1,8 @@
 ---
 title: Guide
 description: 'Get started with Mem0 quickly!'
+icon: "book"
+iconType: "solid"
 ---
 
 > Welcome to the Mem0 quickstart guide. This guide will help you get up and running with Mem0 in no time.