feat: Replace removed template filter 'length_is' with 'length'

Author: simklei

sitetree/templates/sitetree/breadcrumbs-title.html

@@ -1,3 +1,3 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}{% for item in sitetree_items %}{{ item.title_resolved }}{% if not forloop.last %} - {% endif %}{% endfor %}{% endif %}

sitetree/templates/sitetree/breadcrumbs.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <ul>
 	{% for item in sitetree_items %}

sitetree/templates/sitetree/breadcrumbs_bootstrap.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <ul class="breadcrumb">
     {% for item in sitetree_items %}

sitetree/templates/sitetree/breadcrumbs_bootstrap3.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <ul class="breadcrumb">
     {% for item in sitetree_items %}

sitetree/templates/sitetree/breadcrumbs_bootstrap4.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <nav aria-label="breadcrumb" role="navigation">
     <ol class="breadcrumb">

sitetree/templates/sitetree/breadcrumbs_foundation.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <ul class="breadcrumbs">
     {% for item in sitetree_items %}

sitetree/templates/sitetree/breadcrumbs_semantic.html

@@ -1,5 +1,5 @@
 {% load sitetree %}
-{% if sitetree_items|length_is:"1" %}
+{% if sitetree_items|length == 1 %}
 {% else %}
 <div class="ui breadcrumb">
     {% for item in sitetree_items %}