Backport 1.14.3: confirm delete modal for namespaces (#23109)

* Possible soln 1: add a class w/ min height instead of calculated height

* Remove confirm-height style

* Add changelog

* Fix changelog

* Possible soln 2: apply style using native js

* Remove copyright since 1.14 didnt have

changelog/23066.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+ui: Fix the issue where confirm delete dropdown is being cut off
+```

ui/lib/core/addon/components/confirm.js

@@ -32,9 +32,6 @@ export default Component.extend({
   openTrigger: null,
   height: 0,
   focusTrigger: null,
-  style: computed('height', function () {
-    return `height: ${this.height}px`;
-  }),
   wormholeReference: null,
   wormholeId: computed('elementId', function () {
     return `confirm-${this.elementId}`;
@@ -51,7 +48,7 @@ export default Component.extend({
     const height = this.openTrigger
       ? this.element.querySelector('.confirm-overlay').clientHeight
       : this.element.querySelector('.confirm').clientHeight;
-    this.set('height', height);
+    this.element.querySelector('.confirm-wrapper').style = `height: ${height}px;`;
   },
   actions: {
     onTrigger: function (itemId, e) {

ui/lib/core/addon/templates/components/confirm.hbs

@@ -1,6 +1,4 @@
-{{! template-lint-disable no-inline-styles}}
+<div class="confirm-wrapper">
-
-<div class="confirm-wrapper" style={{sanitized-html this.style}}>
   <div class="confirm {{if this.openTrigger 'show-confirm'}}" ...attributes>
     {{yield
       (hash