KubeVela-Logos links give 404s

[chalin]

Visit https://github.com/cncf/artwork/blob/master/examples/sandbox.md#kubevela-logos and you'll see:

All of the horizontal images fail to render (due to 404s) as are some of the other PNGs.

[chalin]

/cc @amye @caniszczyk

[chalin]

The problem is that some of the artwork filenames have zero-width space characters in them, for example:

$ ls /projects/kubevela/horizontal/white | od -c -x
0000000    k   u   b   e   v   e   l   a   -   h   o   r   i   z   o   ​
             756b    6562    6576    616c    682d    726f    7a69    e26f
0000020   **  **   ​  **  **   n   t   a   l   -   w   h   i   t   e   .
             8b80    80e2    6e8b    6174    2d6c    6877    7469    2e65
0000040    p   n   g  \n   k   u   b   e   v   e   l   a   -   h   o   r
             6e70    0a67    756b    6562    6576    616c    682d    726f
0000060    i   z   o   ​  **  **   ​  **  **   n   t   a   l   -   w   h
             7a69    e26f    8b80    80e2    6e8b    6174    2d6c    6877
0000100    i   t   e   .   s   v   g  \n                                
             7469    2e65    7673    0a67                                
0000110

Note the ** in the names.

[chalin]

I've checked the enitre repo and only the KubeVela files have ZWSP characters in them:

# From artwork:
$ find . | grep "$(printf %b '\u200b')" 
./projects/kubevela/horizontal/Color/KubeVela-horizo​​ntal-color.svg
./projects/kubevela/horizontal/Color/kubevela-horizo​​ntal-color.png
./projects/kubevela/horizontal/white/kubevela-horizo​​ntal-white.png
./projects/kubevela/horizontal/white/kubevela-horizo​​ntal-white.svg
./projects/kubevela/horizontal/black/Kubevela-horizo​​ntal-black.png
./projects/kubevela/horizontal/black/kubevela-horizo​​ntal-black.svg