Added necessary css paths for theme selection.
Added options for language and theme selectors.
Added logic in editor.js for language and theme selection.
Added autofocus at editor load.
Making code more readable.
Deleted theme combobox.
Changed location of buttons and combobox.
Changed text type instead of languages.
Added uppercase to names and plain text as option.
Added a onload function to coloring preexisting code (i.e in saved or updated kilinks).