revert: fix(NcActions): use new slots api

- $scopedSlots cannot be used in beforeUpdated.
  On re-rendering, when vnode is reused, on beforeUpdated $scopedSlots returns an old value and breaks rendering.
- Officially, $slots/$scopedSlots should be used only during the rendering
- This commit returns $slots to have an old behavior and resolve regression
- TODO: find better soluton to support both slots API

Reverts commit b94ff04

Signed-off-by: Grigorii K. Shartsev <[email protected]>

src/mixins/actionGlobal.js

@@ -40,7 +40,7 @@ export default {
 
 	methods: {
 		getText() {
-			return this.$scopedSlots.default ? this.$scopedSlots.default()?.[0].text.trim() : ''
+			return this.$slots.default ? this.$slots.default[0].text.trim() : ''
 		},
 	},
 }