Vue SFC Playground: add a project name

[silentmantra]

When working on a lot of SFCs simultaneously (for example answering several stackoverflow questions) or working long on 1 SFC in Vue SFC Playground I have a pile of the same tabs (Vue SFC Playground) and the same history entries. Managing that is a nightmare for example in a history I have to open the entries one-by-one to find a needed SFC or its version.

Suggestion: add a project name to the Vue SFC Playground so it would be displayed as a document title (thus also a tab name and a history entry name)