fix: agenda - speaker

app/data/home.json

@@ -179,7 +179,7 @@
         "time": "10.00 am – 10.40 am",
         "title": "Keynote Address: **\"IPv6 Enhanced, SRv6 & Net5.5G for AI-Native Data Centres\"**",
         "description": "Speaker: Dr. Will Liu, Huawei, China",
-        "avatar": "/assets/img/speakers/placeholder.png"
+        "avatar": "/assets/img/speakers/dr.liushucheng.jpg"
       },
       {
         "order": "08",
@@ -193,7 +193,7 @@
         "time": "11.10 am – 11.50 am",
         "title": "**Building AI-Ready Data Centre Infrastructure in ASEAN**",
         "description": "Speaker: Mr. Bayu Hanantasena, Strategic Advisor to CEO, Indosat, Indonesia",
-        "avatar": "/assets/img/speakers/placeholder.png"
+        "avatar": "/assets/img/speakers/bayu-hanatasena.jpg"
       },
       {
         "order": "10",

app/data/home.vi.json

@@ -179,7 +179,7 @@
         "time": "10.00 am – 10.40 am",
         "title": "Bài phát biểu Keynote: **\"Tối ưu hóa IPv6, SRv6 & Net5.5G cho Trung tâm Dữ liệu tích hợp AI\"**",
         "description": "Speaker: Dr. Will Liu, Huawei, China",
-        "avatar": "/assets/img/speakers/placeholder.png"
+        "avatar": "/assets/img/speakers/dr.liushucheng.jpg"
       },
       {
         "order": "08",
@@ -193,7 +193,7 @@
         "time": "11.10 am – 11.50 am",
         "title": "**Xây dựng hạ tầng Trung tâm dữ liệu sẵn sàng cho AI tại ASEAN**",
         "description": "Speaker: Mr. Bayu Hanantasena, Strategic Advisor to CEO, Indosat, Indonesia",
-        "avatar": "/assets/img/speakers/placeholder.png"
+        "avatar": "/assets/img/speakers/bayu-hanatasena.jpg"
       },
       {
         "order": "10",