Web UI: make "save code now" icon consistent (and look like a camera)
We have at least 3 places where an icon for "save code now" exists. The pictogram in the icon should be the same, and currently isn't.
- left navigation bar: the "save code now" icon is a folder with a down pointing arrow
- browse save request window: the "save again" button has a camera as an icon
- when browsing an origin: the "new snapshot" button has a camera as an icon
We should make this consistent and use a camera everywhere (which will also solve the problem that the folder with the down pointing arrow is very confusing when near to the "download" button, which also has a down arrow as icon).
While we are at it, we should use "save again" also when browsing a repo, as users will generally not know what a "snapshot" is.
Migrated from T2613 (view on Phabricator)