allow add new file into share page for create new share url

[bluelovers]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

https://share.ipfs.io/#/bafybeihrqpj2nf5ldxw7bw55dn2kt24nxgjltx42eoxmbwjrgdlddrfivm

Describe the solution you'd like

allow add file into a share url for create new url

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.