Search functionality

[souhaib-benbouzid]

implement website search functionality

• Setup search backend: Add MeiliSearch service #617
• Indexing models into search backend every 15 mins: Indexing models during cron job #620
• Search endpoint to be used later by frontend: Search Endpoint #623
• global search from frontend by calling search endpoint: Global Search #624

[NurElHuda]

This one is linked to #156 and #203

Does each one have different meaning? or are they duplicates?