Default aliases are missing from web ui

[sed-i]

Expected behaviour

Listing page (or dashboard.snapcraft.io) to show existing aliases (and ideally make it possible to request aliases).

It is common to have aliases for snaps because:

1. We cannot use an underscore in app names; and
2. Length of a snap name cannot be too short, and "If <app-name> is the same as name, the program will be invoked as app-name. However, if they differ, the program will be exposed as <snap-name>.<app-name>.

For example:

nushell.nu  -> nu 
nushell.nu-plugin-formats -> nu_plugin_formats
# etc.

Currently, default aliases have no visibility.

Steps to reproduce the problem

Look at listing page and try to find the default aliases.

Specs

• This issue is related to the snapcraft.io website itself (and not a specific snap).