Use reguar rather than bold icons

frontend/src/components/InputEditorCore.vue

@@ -15,7 +15,7 @@
 					title='Emoji'
 					@click='emojiSelectorVisible = true'
 				>
-					<span class='fa fa-smile'></span>
+					<span class='far fa-smile'></span>
 				</div>
 				<div
 					class='input_editor_core__format_button'

frontend/src/components/NotificationButton.vue

@@ -10,7 +10,7 @@
 			:class='{ "notification_button__button--shake": shake }'
 			@click='setShowMenu(!showMenu)'
 		>
-			<span class='fa fa-bell notification_button__button__icon'></span>
+			<span class='far fa-bell notification_button__button__icon'></span>
 			<span
 				class='notification_button__button__count'
 				:class='{