Dropdown implementation, switch refactoring

* Various fixes

* Fix tests

* Dropdown names deduced from pin names

* Remove update callbacks

* Fix double pins issue

* return undefined if not switch

js/template/pin/DropdownTemplate.js

@@ -0,0 +1,49 @@
+import { html } from "lit"
+import ITemplate from "../ITemplate.js"
+import MouseIgnore from "../../input/mouse/MouseIgnore.js"
+
+/**
+ * @typedef {import ("../../element/DropdownElement.js").default} DropdownElement
+ * @typedef {import("lit").PropertyValues} PropertyValues
+ */
+
+/** @extends {ITemplate<DropdownElement>} */
+export default class DropdownTemplate extends ITemplate {
+
+    /** @type {HTMLSelectElement} */
+    #selectElement
+
+    render() {
+        return html`
+            <select class="ueb-pin-input-content">
+                ${this.element.options.map(([k, v]) => html`
+                    <option value="${k}" ?selected="${k === this.element.selected}">${v}</option>
+                `)}
+            </select>
+        `
+    }
+
+    /** @param {PropertyValues} changedProperties */
+    firstUpdated(changedProperties) {
+        super.firstUpdated(changedProperties)
+        this.#selectElement = this.element.querySelector("select")
+        const event = new Event("input", { bubbles: true })
+        this.#selectElement.dispatchEvent(event)
+    }
+
+    createInputObjects() {
+        return [
+            ...super.createInputObjects(),
+            // Prevents creating links when selecting text and other undesired mouse actions detection
+            new MouseIgnore(this.element, this.blueprint),
+        ]
+    }
+
+    setSelectedValue(value) {
+        /** @type {HTMLOptionElement} */(this.element.querySelector(`option[value="${value}"]`)).defaultSelected = true
+    }
+
+    getSelectedValue() {
+        return this.#selectElement.value
+    }
+}