[Infra] [website]The tasks to create one page for logo files downloading

Hi all,

There are 2 issues for the same purpose, which is to store logo fies.

I create the task [1]. It is the first time for me to use task and sub-tasks in Gitee. Let's try both to complete the task but also to try the tasks management.

Feel free to comment or help on me.

[1] https://gitee.com/open_euler/dashboard?issue_id=I122QY [2] https://gitee.com/open_euler/dashboard?issue_id=I1CCVJ