Add check for comments and empty lines in .env file

Author: MuhammadUsama-afk-equinor

backend/api/Configurations/ConfigurationBuilderExtensions.cs

@@ -61,6 +61,9 @@ public static void AddDotEnvironmentVariables(this WebApplicationBuilder builder
                     '=',
                     StringSplitOptions.RemoveEmptyEntries);
 
+                if (parts.Length == 0 || parts[0].StartsWith('#'))
+                    continue;
+
                 Environment.SetEnvironmentVariable(parts[0], parts[1]);
             }