Add Search functionality

**Description:**
As a user, I would be happy if I could search tasks and snippets. 

**Actual result:**
There is no search functionality in tasks and snippets.

**Expected result:**
When I search for something in the tasks or snippets pages, the relevant data should be shown to the user.

Steps to reproduce:
1- http://localhost:5173/tasks
2- http://localhost:5173/snippets

