Function When_I_find_element_by_selector

When_I_find_element_by_selector(selector: string): void
When I find element by selector:
```
When I find element by selector {string}
```
Get the descendent DOM elements of a specific selector.

The querying behavior of this command matches exactly how .find() works in jQuery.
Parameters
- selector: string
Returns void
Example
Find the element with the class banner:
```
When I find element by selector ".banner"
```
Remarks
A preceding step like "When I find form" is required. For example:
```
When I find form
  And I find element by selector "input[type='checkbox']"
  And I click
```
See
- When I get element by selector
- Defined in queries/find.ts:38