Search: Filter topics based on default search query. Show only files with the word "test"

[alx-zhu]

Added search function to use queries from the [topic-search] component in templates/partials/topic-list-bar.tpl to filter topics based on titles.

Hides titles that do not match the search query, and displays an info message when there are no topics found.

Resolves #3, #8

66DB7015-48E6-4FD2-B411-DAEBD42EA339.mov

[coveralls]

Pull Request Test Coverage Report for Build 11021780157

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 7 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.006%) to 82.677%

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Files with Coverage Reduction	New Missed Lines	%
src/api/posts.js	7	88.07%

Totals
Change from base Build 10765240936:	0.006%
Covered Lines:	22330
Relevant Lines:	25588

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💛 - Coveralls