Hot-keys for faster navigation in subiquity's keyboard dialog (and maybe other dialogs) desired

[Frank Heimes]

It would improve the navigation in the keyboard configuration dialog,
if the cursor would jump to the Layouts and Variants that start with "n" in case the 'n'-key got pressed.
Means pressing "g" would jump to "Georgian" - the first entry that starts with g,
pressing 'j' would jump to "Japanese" etc.

==========================lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk=======
  Keyboard configuration x Estonian ^xelp ]
  ==========================x Faroese x=======
  Please select the layoutx Filipino xm, if
  any. x Finnish x
                          x French x
                 Layout: x French (Canada) x
                          x French (Democratic Republic of the Congo) x
                          x French (Guinea) x
                Variant: x French (Togo) x
                          x Georgian xx
                          x German < x
                          x German (Austria) x
                          x Greek x
                          x Hebrew x
                          x Hungarian x
                          x Icelandic x
                          x Indian x
                          x Indonesian (Jawi) x
                          x Iraqi x
                          x Irish x
                          x Italian x
                          x Japanese vx
                          mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj

Again - not limited to the keyboard layout and variant lists...