Add a Search box in the settings and help, auto jump

[ScottMorris]

It searches both description and command, crtl + up and down jump the search results

 ┌──────────────────────────────────────────────────────────────────────┐ 
 │                                                                      │ 
 │  Help                                               Close: Esc or ?  │ 
 │  ┌-----------------------------------------------------------------┐ |                                                                     
 |  | Search                                                          | |
 |  └-----------------------------------------------------------------┘ |
 │  > Move selection                      k/Up/j/Down                   │ 
 │    Enter directory                     l/Right/Enter                 │ 
 │    Go up                               h/Left/Backspace              │ 
 │    Quit                                q/Esc                         │ 
 │                                                                      │ 
 │  View & Display                                                      │ 
 │    Sort by name                        n                             │ 
 │    Sort by size                        s                             │ 
 │    Sort by count                       C                             │ 
 │    Toggle view mode                    v                             │ 
 │    Toggle hidden files                 .                             │ 
 │    Review filters                      f                             │ 
 │    Review next preset                  m                             │ 
 │    Review next group                   g                             │ 
 │                                                                      │ 
 │  Use Arrow keys to scroll.                                           │ 
 │                                                                      │ 
 └──────────────────────────────────────────────────────────────────────┘