Adds a new advanced search icon alongside the result tabs for switching
to a different country from the result page.
This will obviously get populated with other methods of filtering
results, but for now it's just the country selector.
Introduces a header for switching between result types (i.e. "All", "News",
etc) that is consistent between the different result types. Previously, image
results had a tab header that was formatted in a drastically different manner,
which was jarring when switching from a different result page to the Images
page.
Created a G class enum to reference class names returned in search
results. As noted in the class doc, this should only be used/updated as
a last resort, as class names change frequently. For some instances,
such as replacing the tbm tab, it's a lot easier to just replace by
header name than attempting to replace it based on how the element is
structured.
Also updated a few styles to revert the latest styling changes being
applied by Google.
Co-authored-by: jacr13 <ramos.joao@protonmail.com>
Co-authored-by: Ben Busby <contact@benbusby.com>
