Beta feedback, flicker on loading and URL improvements.

Bug Fixes:

• broken links in detail view to dyfi, shakemap, pager
• broken download links in download modal
• feed failure dialog opens multiple times
• "restrict list to map" control broken in settings panel
• disable auto update when search feed is selected
• update page/browser tab title
• change placeholder text for mouse position control
• fix sort order on application load
• fix, unable to select list item that is not within map extents for mobile

Feature updates:

• add google analytics
• remove "zoom to" map control

Design Updates:

• Update map controls to be consistent
• Add PWA styles for iOS
• Update PWA icons
• Change accent color