As Element should have default option of literal value instead of binding

[bigopon]

I'm submitting a bug report

• Extension Version:
  0.1.8

Please tell us about your environment:

• Operating System:
  all
• Visual studio code version:
  all

Current behavior:
as-element shouldn't have any binding options OR have a default option of literal value. As normally this is the expected default behavior

• What is the motivation / use case for changing the behavior?
  Having to modify autocomplete result every time is not good experience