Update explorer (#4922)

Updates explorer with new features:
- pagination for chains, latest blocks, chain's blocks
- improved re-rendering 
- refactored code for readability and maintainability
- added search-for-chain feature



https://github.com/user-attachments/assets/d25f21fd-7ab4-4b22-ae0a-d51d7e04675d

Author: deuszx

docker/Dockerfile.explorer

@@ -2,6 +2,8 @@
 # Stage 1: Build the frontend
 FROM node:18-alpine AS frontend-builder
 
+RUN apk add --no-cache python3 make g++
+
 WORKDIR /app
 
 # Copy package files
@@ -31,6 +33,7 @@ COPY linera-explorer-new/server ./server
 COPY linera-explorer-new/package*.json ./
 
 # Install backend dependencies (including better-sqlite3)
+RUN apk add --no-cache python3 make g++
 RUN npm ci --only=production
 
 # Stage 3: Production runtime

linera-explorer-new/package-lock.json

@@ -17,7 +17,7 @@
     "lucide-react": "^0.263.1",
     "express": "^4.18.2",
     "cors": "^2.8.5",
-    "better-sqlite3": "^8.7.0"
+    "better-sqlite3": "^12.4.1"
   },
   "devDependencies": {
     "@types/react": "^18.2.15",