Added Bibtex key and Exact Reference field

Fixes

Fixes for #572 (closed) and #544 (closed) .

Description

A) Added Bibtexkey and Exact reference fields in publications data of advanced search.
B) Added filters for textual data. (Languages and Genres).
C) Added missing CSS file for display query.

Tests

Description A :
1.Enable Elasticsearch container from "config.json.dist" file.
2.Search with any publication Bibtexkey in Bibtex Key field or publication exact reference in Exact Reference field in advanced search.
Description B :
1.Search with any collections, publications, etc.
2.Apply Textual filters and verify results.
Description C :
1.Search with any collections, publications, etc.
2.Verify that search query is shown as following:

Checklist:

• My pull request has a descriptive title (not a vague title like "Update index.md").
• My pull request targets the phoenix/develop branch of the repository.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• I tried running the project locally and verified that there are no visible errors.