Update Bridge Page

• all ' ' -> to " " to keep consistency with other pages
• Parallel the logic flowed from the updated Circumvention page, where the first paragraph contains instructions when users click "Configure" when the Tor Browser is first started. Then, on the following paragraph, a set of instructions for when the user clicks on "Preferences" from the hamburger menu.
• Add a screen shot of the option "Request a bridge from torproject.org"