refactor: update concept list item layout and text

Rearrange the clock icon in the concept list item to improve 
visual consistency. Update the text in the track template to 
better engage users by referencing the specific programming 
language, enhancing clarity and relevance.

Author: rohitpaulk

app/components/track-page/primer-concept-group-card/concept-list-item.hbs

@@ -21,12 +21,12 @@
       {{svg-jar "check" class="ml-1 w-5 text-teal-500"}}
     {{else}}
       <div class="items-center gap-1 pl-4 hidden sm:flex flex-shrink-0">
-        {{svg-jar "clock" class="w-4 fill-current text-gray-300 dark:text-gray-700"}}
-
         <span class="text-xs text-gray-400 dark:text-gray-600">
           {{@concept.estimatedReadingTimeInMinutes}}
           mins
         </span>
+
+        {{svg-jar "clock" class="w-4 fill-current text-gray-300 dark:text-gray-700"}}
       </div>
     {{/if}}
   </div>

app/components/track-page/primer-concept-group-card/index.hbs

@@ -13,9 +13,9 @@
   </:afterTitle>
 
   <:default>
-    <div class="leading-6 prose dark:prose-invert mb-4">
+    {{!-- <div class="leading-6 prose dark:prose-invert mb-4">
       New to Rust? Start with our interactive concepts that cover the basics.
-    </div>
+    </div> --}}
 
     <TrackPage::PrimerConceptGroupCard::ConceptList @conceptGroup={{@conceptGroup}} />
   </:default>

app/templates/track.hbs

@@ -11,6 +11,20 @@
     <div class="flex items-start">
       <div class="flex-grow">
         {{#if this.trackPrimerConceptGroup}}
+          <div class="border-b pb-1 mb-4 flex">
+            <div class="text-2xl font-semibold text-gray-800 dark:text-gray-200">
+              {{@model.language.name}}
+              Basics
+            </div>
+          </div>
+
+          <div class="prose dark:prose-invert mb-4">
+            <p>
+              New to
+              {{@model.language.name}}? Start with our interactive concepts that cover the basics.
+            </p>
+          </div>
+
           <TrackPage::PrimerConceptGroupCard @language={{@model.language}} @conceptGroup={{this.trackPrimerConceptGroup}} class="w-full mb-6" />
 
           <div class="border-b pb-1 mb-4 flex">
@@ -22,7 +36,9 @@
 
           <div class="prose dark:prose-invert mb-4">
             <p>
-              Ready to get your hands dirty? Here are some projects you can build.
+              Time to put those
+              {{@model.language.name}}
+              skills to the test. Practice by building these projects.
             </p>
           </div>
         {{/if}}