fix-8686:Sort speakers according to the Alphabet and allow typing of … (#8778)

* fix-8686:Sort speakers according to the Alphabet and allow typing of names

* fix-8686: Sort speakers according to the Alphabet and input search

* fix-8686:  Sort speakers according to the Alphabet and allow search multiple

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Co-authored-by: cweitat <[email protected]>

Author: khangon

app/templates/components/forms/session-speaker-form.hbs

@@ -18,15 +18,15 @@
       {{t 'Choose from existing speaker(s)'}}
     </h4>
     <UiDropdown
-      @class="fluid multiple selection"
+      @class="fluid multiple search selection {{if this.addNewSpeaker "disabled"}}"
       @selected={{this.speakersDetails}}
       @onChange={{action (mut this.speakersDetails)}} as |execute mapper|>
       <i class="dropdown icon"></i>
       <div class="default text">
         {{t 'Select Speakers'}}
       </div>
       <div class="menu">
-        {{#each (sort-by 'position' this.speakers) as |speaker|}}
+        {{#each (sort-by 'name' this.speakers) as |speaker|}}
           {{#if speaker.name}}
             <div data-value="{{map-value mapper speaker}}" class="item">
               {{speaker.name}}