Disagg to use nshmp-haz

Redirect the disagg application to use the recently updated disagg service nshmp-haz!588 (merged)

The structure of the disagg data needed to generate the plot, summary table, and contributors table has not changed, but is nested differently in the response object. The service call changes are documented on staging.

Disagg response changes:

OLD

"response": [
  {                      // one member per imt
    "metadata": { ... }, // verbose metadata
    "data": [ ... ]      // array of disagg components
  },{                    // one per IMT, response was array so could have
    ...                  // more than one, but never did in practice

NEW

"response": {
  "metadata": { ... }, // one per response
  "disaggs": [
    {
      "imt": { "PGA", "PGA"},
      "data":  [ ... ]      // array of disagg components, same as above
    },{
      ...

changed milestone to %NSHM Hazard Tool launch

added 2023 Apps Hazard-Disagg labels

assigned to @bclayton

added To Do label

As a result of nshmp-haz#499 (closed) the disagg service url must also contain the query argument ?out=DISAGG_DATA,GMM,SOURCE; comma-delimited arguments are ok in most services for multiples.

added In Progress label and removed To Do label

mentioned in merge request !127 (merged)

mentioned in commit ccc4e1c8

closed with merge request !127 (merged)

removed In Progress label