Issue

The EuiSearchBar doesn't provide support for forward slashes when the query prop is provided as a string.

Example:

<EuiSearchBar query="url.full:https://www.elastic.co/" />

Proposed solution

The parsing code should:

• support escaped forward slashes, i.e. http:\/\/somewhere.com\/
• support verbatim strings, i.e. '"http://somewhere.com/"'