settings: fix saving of visual settings of page size

After 19f15cde2cdb it was no longer to save page_size because formfill didn't
match. Back out a part of that changeset.

kallithea/controllers/admin/settings.py

@@ -260,7 +260,7 b' class SettingsController(BaseController)'
                     ('show_private_icon', 'show_private_icon', 'bool'),
                     ('stylify_metatags', 'stylify_metatags', 'bool'),
                     ('repository_fields', 'repository_fields', 'bool'),
-                    ('dashboard_items', 'page_size', 'int'),
+                    ('dashboard_items', 'dashboard_items', 'int'),
                     ('admin_grid_items', 'admin_grid_items', 'int'),
                     ('show_version', 'show_version', 'bool'),
                     ('use_gravatar', 'use_gravatar', 'bool'),

kallithea/model/forms.py

@@ -360,7 +360,7 b' def ApplicationVisualisationForm():'
 
         repository_fields = v.StringBoolean(if_missing=False)
         lightweight_journal = v.StringBoolean(if_missing=False)
-        page_size = v.Int(min=5, not_empty=True)
+        dashboard_items = v.Int(min=5, not_empty=True)
         admin_grid_items = v.Int(min=5, not_empty=True)
         show_version = v.StringBoolean(if_missing=False)
         use_gravatar = v.StringBoolean(if_missing=False)

kallithea/templates/admin/settings/settings_visual.html

@@ -54,9 +54,9 b''
             </div>
 
             <div class="form-group">
-                <label class="control-label" for="page_size">${_('Repository page size')}:</label>
+                <label class="control-label" for="dashboard_items">${_('Repository page size')}:</label>
                 <div>
-                    ${h.text('page_size',size=5,class_='form-control')}
+                    ${h.text('dashboard_items',size=5,class_='form-control')}
                     <span class="help-block">${_('Number of items displayed in the repository pages before pagination is shown.')}</span>
                 </div>
             </div>