HTML Templating un-indents template helpers

[jeffshaver]

If you type something like:

<div class="blah">
  {{#each posts}}

  {{/each}}
</div>

If you type more brackets inside the each template helper, it gets un-indented and you end up with

<div class="blah">
  {{#each posts}}
  {{post.title}}
  {{/each}}
</div>

instead of

<div class="blah">
  {{#each posts}}
    {{post.title}}
  {{/each}}
</div>

[peterflynn]

The main issue is that the plain HTML syntax mode doesn't know that {{#each}} blocks should add an extra level of indent, so anything that triggers re-indentation will jump the cursor back one tab stop. As a secondary bug, Brackets treats } as a character to trigger re-indentation even in languages where it shouldn't, like HTML.

The secondary bug should be fixed by PR #9387. But after that, you'll still see unwanted un-indenting when typing closing HTML tags. To fix that, we'd need full syntax mode support for templating languages so that Brackets understands what the correct indent level should be.