Fix color setup on job page

web/app/templates/jobs/job.html.j2

 {% extends "nopaque.html.j2" %}
-{% from '_constants.html.j2' import COLORS %}
+{% from '_colors.html.j2' import colors %}
 
 {% if job.service == 'file-setup' %}
-  {% set border_color = COLORS.file_setup_darken %}
+  {% set border_color = colors.file_setup_darken %}
   {% set main_class = 'file-setup-color lighten' %}
-  {% set scheme_color = COLORS.file_setup_darken %}
+  {% set scheme_color = colors.file_setup_darken %}
 {% elif job.service == 'nlp' %}
-  {% set border_color = COLORS.nlp_darken %}
+  {% set border_color = colors.nlp_darken %}
   {% set main_class = 'nlp-color lighten' %}
-  {% set scheme_color = COLORS.nlp_darken %}
+  {% set scheme_color = colors.nlp_darken %}
 {% elif job.service == 'ocr' %}
-  {% set border_color = COLORS.ocr_darken %}
+  {% set border_color = colors.ocr_darken %}
   {% set main_class = 'ocr-color lighten' %}
-  {% set scheme_color = COLORS.ocr_darken %}
+  {% set scheme_color = colors.ocr_darken %}
 {% endif %}
 
 {% block main_attribs %} class="{{ main_class }}"{% endblock main_attribs %}