update jump to latest button with circular design and animation

- add arrow-down-to-line icon
- circular 32px button centered above prompt input
- fade/scale/translate animation on show/hide
- fix duplicate language.ru keys in i18n files

packages/ui/src/components/icon.tsx

@@ -69,6 +69,7 @@ const icons = {
   sliders: `<path d="M3.625 6.25H10.9375M16.375 13.75H10.5625M3.625 13.75H4.9375M11.125 6.25C11.125 4.79969 12.2997 3.625 13.75 3.625C15.2003 3.625 16.375 4.79969 16.375 6.25C16.375 7.70031 15.2003 8.875 13.75 8.875C12.2997 8.875 11.125 7.70031 11.125 6.25ZM10.375 13.75C10.375 15.2003 9.20031 16.375 7.75 16.375C6.29969 16.375 5.125 15.2003 5.125 13.75C5.125 12.2997 6.29969 11.125 7.75 11.125C9.20031 11.125 10.375 12.2997 10.375 13.75Z" stroke="currentColor" stroke-linecap="square"/>`,
   keyboard: `<path d="M5.125 7.375V4.375H14.875V2.875M8.3125 13.9375H11.6875M8.125 13.9375H11.875M2.125 7.375H17.875V17.125H2.125V7.375ZM5.5 10.375H5.125V10.75H5.5V10.375ZM8.5 10.375H8.125V10.75H8.5V10.375ZM11.875 10.375H11.5V10.75H11.875V10.375ZM14.875 10.375H14.5V10.75H14.875V10.375ZM14.875 13.75H14.5V14.125H14.875V13.75ZM5.5 13.75H5.125V14.125H5.5V13.75Z" stroke="currentColor" stroke-linecap="square"/>`,
   selector: `<path d="M6.66626 12.5033L9.99959 15.8366L13.3329 12.5033M6.66626 7.50326L9.99959 4.16992L13.3329 7.50326" stroke="currentColor" stroke-linecap="square"/>`,
+  "arrow-down-to-line": `<path d="M15.2083 11.6667L10 16.875L4.79167 11.6667M10 16.25V3.125" stroke="currentColor" stroke-width="1.25" stroke-linecap="square"/>`,
 }
 
 export interface IconProps extends ComponentProps<"svg"> {