refactor(frontend): asとanyをすぐなおせる範囲で除去 (#14848)

* refactor(frontend): できるだけanyを除去

* refactor

* lint

* fix

* remove unused

* Update packages/frontend/src/components/MkReactionsViewer.details.vue

* Update packages/frontend/src/components/MkUsersTooltip.vue

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/components/MkEmojiPicker.section.vue

@@ -90,7 +90,7 @@ function computeButtonTitle(ev: MouseEvent): void {
 	elm.title = getEmojiName(emoji);
 }
 
-function nestedChosen(emoji: any, ev: MouseEvent) {
+function nestedChosen(emoji: string, ev: MouseEvent) {
 	emit('chosen', emoji, ev);
 }
 </script>