feat: enhance subgraph explorer with Arbitrum Sepolia support and update deployment commands

Author: Le-Caignec

src/get-started/tooling-and-explorers/subgraph-explorer.md

@@ -2,7 +2,8 @@
 title: The Graph Explorer
 description:
   Explore and query blockchain data using The Graph's decentralized indexing
-  protocol. Access iExec subgraphs on Arbitrum and Bellecour networks.
+  protocol. Access iExec subgraphs on Arbitrum, Arbitrum Sepolia, and Bellecour
+  networks.
 ---
 
 # 🔍 The Graph Explorer
@@ -70,6 +71,28 @@ protocol.
   button-rel="noreferrer"
 />
 
+<ProjectCard
+  title="iExec PoCo - Arbitrum Sepolia"
+  description="Indexes Proof of Contribution (PoCo) data on Arbitrum Sepolia testnet, including apps, deals, tasks and workerpools"
+  :icon-image="arbitrumIcon"
+  status="available"
+  status-label="Live"
+  button-label="Explore Subgraph"
+  button-href="https://thegraph.com/explorer/subgraphs/2GCj8gzLCihsiEDq8cYvC5nUgK6VfwZ6hm3Wj8A3kcxz?view=Query&chain=arbitrum-one"
+  button-rel="noreferrer"
+/>
+
+<ProjectCard
+  title="iExec DataProtector - Arbitrum Sepolia"
+  description="Comprehensive indexing service for iExec DataProtector on Arbitrum Sepolia testnet, tracking protected data assets, their schemas and owner"
+  :icon-image="arbitrumIcon"
+  status="available"
+  status-label="Live"
+  button-label="Explore Subgraph"
+  button-href="https://thegraph.com/explorer/subgraphs/5YjRPLtjS6GH6bB4yY55Qg4HzwtRGQ8TaHtGf9UBWWd?view=Query&chain=arbitrum-one"
+  button-rel="noreferrer"
+/>
+
 <ProjectCard
   title="iExec PoCo - Bellecour"
   description="Indexes Proof of Contribution (PoCo) data on Bellecour mainnet, including apps, deals, tasks and workerpools"

src/guides/build-iapp/deploy-&-run.md

@@ -31,7 +31,7 @@ specify your app version, and push both standard and TEE-compatible images:
 
 <template v-else-if="selectedChain === 421614">
   <CLIDemo
-    initialCommand="iapp deploy --chain arbitrum-sepolia"
+    initialCommand="iapp deploy --chain arbitrum-sepolia-testnet"
     asciiText="Deploy"
     :steps="arbitrumSepoliaSteps"
     :completionStep="15"
@@ -104,7 +104,7 @@ for developers who have built their own iApp.
 
 <template v-else-if="selectedChain === 421614">
   <CLIDemo
-    initialCommand="iapp run 0x1f80DCebc2EAAff0Db7156413C43B7e88D189923 --chain arbitrum-sepolia"
+    initialCommand="iapp run 0x1f80DCebc2EAAff0Db7156413C43B7e88D189923 --chain arbitrum-sepolia-testnet"
     asciiText="Execute"
     :steps="arbitrumSepoliaRunSteps"
     :completionStep="16"
@@ -523,7 +523,7 @@ const bellecourRunCompletionItems = [
 const arbitrumSepoliaSteps = [
   {
     showAt: 2,
-    question: 'Using chain arbitrum-sepolia',
+    question: 'Using chain arbitrum-sepolia-testnet',
     answer: '',
     showTyping: false,
     isComplete: true
@@ -609,7 +609,7 @@ const arbitrumSepoliaCompletionItems = [
 const arbitrumSepoliaRunSteps = [
   {
     showAt: 2,
-    question: 'Using chain arbitrum-sepolia',
+    question: 'Using chain arbitrum-sepolia-testnet',
     answer: '',
     showTyping: false,
     isComplete: true