Name custom Css/Less textareas

[ilikeprograms]

This could be done easily enough, just need to have an input above each textarea which is added, with a default name of "unnamed" or something.

Then this name needs to be saved on export, and imported on import. So the JSON which is exported would need to change format slightly.

SO "_extra": "less": ["less syntax"] would need to become "_extra": "less": ["name": "unammed", "content": "less syntax"] etc.

The relevant methods for the importing would be Import#importThemeExtra.

If anyone wants to help with this then let me know and I will not start doing this yet.