Fixed issue in EditorStartup.init() where $qq will not work if the editor is in a Web Component (#1028)

* Added alt tags to img elements.

* fixed lint issues

* Changed the SESpinInput to have a closed shadow DOM to fix the duplicate label id issue reported in browser.

* Fixed code in EditorStartup that fails if the editor is in a Web Component.  $qq will not find the .svg_editor, but this.$container will.

* fix linter issue

* update packages

* remove closed as this causes the test to fail.

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Co-authored-by: JFH <20402845+jfhenon@users.noreply.github.com>

src/editor/components/seSpinInput.js

@@ -66,7 +66,7 @@ export class SESpinInput extends HTMLElement {
     // locate the component
     this.$div = this._shadowRoot.querySelector('div')
     this.$img = this._shadowRoot.querySelector('img')
-    this.$label = this.shadowRoot.getElementById('label')
+    this.$label = this._shadowRoot.getElementById('label')
     this.$event = new CustomEvent('change')
     this.$input = this._shadowRoot.querySelector('elix-number-spin-box')
     this.imgPath = svgEditor.configObj.curConfig.imgPath