* fixes bug in tag search feature
now allows user to type in full name of tag and it does not disappear
makes other changes to pass eslint failing tests
moves methods around according to eslint tests
makes use of prevState callback method due to eslint tests
* updates handleKeyDown method
removes complex logical expression comparison from !== to !=
changes made due to failing task in pull request
* removes commented out code that I added to test code
updates logic to fix searchResults
removes .filter()
* adds comments to fixed code for clarification
