Fix awesomplete lib loading in Firefox

[vbaranov]

Motivation

Styles in the search field are broken in Firefox because awesomplete.css is not loaded there

Changelog

Fix loading of awesomplete.css

Checklist for your Pull Request (PR)

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so by submitting a PR to https://github.com/blockscout/docs
• If I added/changed/removed ENV var, I submitted a PR to https://github.com/blockscout/docs to update the list of env vars at https://github.com/blockscout/docs/blob/master/for-developers/information-and-settings/env-variables.md and I updated the version to master in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.
• If I add new indices into DB, I checked, that they are not redundant with PGHero or other tools

[coveralls]

Pull Request Test Coverage Report for Build b24d57c4-64f6-4115-8bc6-23816412c7cf

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 75.348%

---

Totals
Change from base Build 81a76efa-c344-4d03-bd03-af7f5818371f:	0.0%
Covered Lines:	5419
Relevant Lines:	7192

---

💛 - Coveralls