Type framer-motion variants as Variants — kill 33 tsgo errors

ToolbarView and FriendsBarView declared their motion variant objects
without a type annotation, so tsgo widened transition.type to 'string'
where framer-motion's Variants narrows it to a literal union (spring /
tween / inertia / etc). Every <motion.div variants={...} /> site flagged
the mismatch.

Annotating the constants as Variants makes the literal inference work
('spring' stays 'spring'); also drops the redundant 'as const' on
staggerDirection now that the parent type pins it.

Net tsgo error count: 133 -> 100.

src/components/friends/views/friends-bar/FriendsBarView.tsx

@@ -2,18 +2,18 @@ import { FC, useRef, useState } from 'react';
 import { FaChevronLeft, FaChevronRight } from 'react-icons/fa';
 import { LocalizeText, MessengerFriend } from '../../../../api';
 import { FriendBarItemView } from './FriendBarItemView';
-import { motion, AnimatePresence } from 'framer-motion';
+import { motion, AnimatePresence, Variants } from 'framer-motion';
 
 const MAX_DISPLAY_COUNT = 3;
 
 // Mirrored from Toolbar to keep physics identical
-const containerVariants = {
+const containerVariants: Variants = {
     hidden: {},
     visible: { transition: { staggerChildren: 0.05 } },
-    exit: { transition: { staggerChildren: 0.03, staggerDirection: -1 as const } },
+    exit: { transition: { staggerChildren: 0.03, staggerDirection: -1 } },
 };
 
-const itemVariants = {
+const itemVariants: Variants = {
     hidden: { opacity: 0, y: 10, scale: 0.8 },
     visible: { opacity: 1, y: 0, scale: 1, transition: { type: 'spring', stiffness: 400, damping: 22 } },
     exit: { opacity: 0, y: 6, scale: 0.85, transition: { duration: 0.1 } },