feat: ssr support for <style vars>

packages/runtime-dom/src/helpers/useCssModule.ts

@@ -1,7 +1,7 @@
 import { warn, getCurrentInstance } from '@vue/runtime-core'
 import { EMPTY_OBJ } from '@vue/shared'
 
-export function useCSSModule(name = '$style'): Record<string, string> {
+export function useCssModule(name = '$style'): Record<string, string> {
   if (!__GLOBAL__) {
     const instance = getCurrentInstance()!
     if (!instance) {

packages/runtime-dom/src/helpers/useCssVars.ts

@@ -9,7 +9,7 @@ import {
 } from '@vue/runtime-core'
 import { ShapeFlags } from '@vue/shared/src'
 
-export function useCSSVars(
+export function useCssVars(
   getter: (ctx: ComponentPublicInstance) => Record<string, string>,
   scoped = false
 ) {