3682 Search screen UX

This closes #3682 (closed)

• Added the close icon to the text input
• Changed the navigation icon to text
• Now the screen clears the search on mount
• Added the search button action to the keyboard
• Added missing hairline to the header
• Fixed double border on the search history list
• Changed the search action text of the "Search Minds:" to "See results for" with a link color which is more aligned with the user expectations
• Increased the overall consistency of the screen elements alignment