fix: no cache middleware to prevent visual bugs

src/middleware/noCache.go

@@ -0,0 +1,12 @@
+package middleware
+
+import "github.com/gin-gonic/gin"
+
+func NoCacheMiddleware() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Cache-Control", "no-cache, no-store, must-revalidate")
+		c.Header("Pragma", "no-cache")
+		c.Header("Expires", "0")
+		c.Next()
+	}
+}