style(make findable): keep button expanded while options are shown

Author: angelo-v

elements/src/components/pos-make-findable/pos-make-findable.css

@@ -65,7 +65,8 @@ svg {
   width: var(--size-6);
 }
 
-button.main:hover {
+button.main:hover,
+button.open {
   width: var(--size-full);
   height: var(--size-8);
   background: var(--color-grey-200);

elements/src/components/pos-make-findable/pos-make-findable.tsx

@@ -78,7 +78,7 @@ export class PosMakeFindable implements PodOsAware {
 
     return (
       <Host>
-        <button class="main" onClick={e => this.onClick(e)} title="">
+        <button class={{ main: true, open: this.showOptions }} onClick={e => this.onClick(e)} title="">
           <svg
             xmlns="http://www.w3.org/2000/svg"
             fill="none"