refac: checkbox: add additional type to selected prop (#1050)

* refac: include an additional type for the prop 'selected', since it can sometimes be a number

* update CHANGELOG.md

* Update src/components/DpSelect/DpSelect.vue

Co-authored-by: salisdemos <40487461+salisdemos@users.noreply.github.com>

---------

Co-authored-by: salisdemos <40487461+salisdemos@users.noreply.github.com>

CHANGELOG.md

@@ -4,6 +4,9 @@ Since v0.0.10, this Changelog is formatted according to the [Common Changelog][c
 
 ## UNRELEASED
 
+### Added
+- ([#1050](https://github.com/demos-europe/demosplan-ui/pull/1050)) DpCheckbox: add additional type to 'selected' prop ([@sakutademos](https://github.com/sakutademos)
+
 ## v0.3.34 - 2024-10-09
 
 ### Added

src/components/DpSelect/DpSelect.vue

@@ -127,7 +127,7 @@ export default {
     },
 
     selected: {
-      type: String,
+      type: [String, Number],
       required: false,
       default: ''
     }