[video] remove video files from git, use external links

Author: fangq

src/components/NavBar/NavItems.tsx

@@ -130,6 +130,7 @@ const NavItems: React.FC = () => {
                       sx={{
                         color: Colors.white,
                         transition: "color 0.3s ease, transform 0.3s ease",
+                        textTransform: "uppercase",
                         "&:hover": {
                           transform: "scale(1.2)",
                           cursor: "pointer",

src/pages/AboutPage.tsx

@@ -56,7 +56,7 @@ const AboutPage: React.FC = () => {
               style={{ maxHeight: "500px", objectFit: "cover" }}
             >
               <source
-                src={`${process.env.PUBLIC_URL}/video/introduction_video.mp4`}
+                src={`${process.env.PUBLIC_URL}/download/static/video/introduction_video.mp4`}
                 type="video/mp4"
               />
               Your browser does not support the video tag.
@@ -128,7 +128,7 @@ const AboutPage: React.FC = () => {
               style={{ maxHeight: "500px", objectFit: "cover" }}
             >
               <source
-                src={`${process.env.PUBLIC_URL}/video/preview_video.mp4`}
+                src={`${process.env.PUBLIC_URL}/download/static/video/preview_video.mp4`}
                 type="video/mp4"
               />
               Your browser does not support the video tag.