Clean up search pop-up

[C9Glax]

• [x] Implement search with new pop-up HTML components
• [x] Add preview pane to search pop-up that shows the manga details
• [x] Add ability to download specific chapters from the front end

[db-2001]

• [x] Ability to choose save location
• [x] Ability to choose which chapter to monitor from (including automatic monitoring of all future chapters)

[db-2001]

Note to self: Try this with Rent-A-GF since MDex doesn't have latest chapters