Anoushka application search backend

[Anoushka21]

Description

• Search API was already implemented in existing code so I worked on 2,3 and 4.

Related PRS (if any):

This is a backend PR. You can use Postman to test functionality.
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Main changes explained:

• Added a summaries API which fetch job summaries with pagination, search, filtering, and sorting when provided a job title or category. The summary API only shows title,category,location,description,datePosted,featured columns
• Added a job suggestions API which gives suggestions for a drop down menu given s job title search query.
• Added a reset Filter API which resets filters and returns all jobs sorted by title, date posted and featured or not

How to test:

1. check into current branch
2. do npm install and ... to run this PR locally
3. Go to Postman and test out the endpoints
4. Use GET http://localhost:4500/api/jobs/summaries?search=Analyst for testing Summary API
5. Use GET http://localhost:4500/api/jobs/suggestions?query=an for testing the Drop down suggestion API
6. Use GET http://localhost:4500/api/jobs/reset-filters for reset filter

Screenshots or videos of changes:

PR.mp4

[mashpotato9]

I've reviewed this pr and all the functionalities worked as expected.