Merge branch 'oliviergoulet/main/135' into 'main'

Add /collaborations page

Closes #135 and eclipsefdn/infrazilla#669

See merge request eclipsefdn/it/websites/eclipse.org!36

webpack.mix.js

@@ -20,6 +20,7 @@ mix.setResourceRoot('../');
 
 mix.less('./less/styles.less', 'static/public/css/styles.css');
 
+mix.less('./less/page_css_file/collaborations/styles.less', 'static/public/css/collaborations-styles.css');
 mix.less('./less/page_css_file/projects/openchain.less', 'static/public/css/projects-openchain.css');
 mix.less('./less/page_css_file/europe/styles.less', 'static/public/css/europe-styles.css');