Use one default template

[andrewn]

Nature of issue?

• Existing feature enhancement

Feature enhancement details:

The default HTML for a sketch is defined in multiple places:

1. client/modules/IDE/reducers/files.js
2. server/domain-objects/createDefaultFiles.js
3. server/scripts/examples.js

This makes it a bit tricky to update (see #1396).

We could define the template in one place that the files above use.

Note: When the public API is released, then the examples script (3) won't need to create HTML templates since the API creates default files automatically.

[catarak]

This is a great idea. Maybe this could also be handled in tandem with #144?

[SundeepChand]

Hello @catarak, I would like to work on this.