refactor: standardize view headings across all components

- Add consistent view heading IDs and structure
- Add consistent help buttons and back navigation
- Improve spacing and typography consistency

src/views/StartView.vue

@@ -3,26 +3,31 @@
     id="Content"
     class="p-6 pb-24 min-h-screen flex flex-col justify-center"
   >
-    <!-- Breadcrumb -->
-    <div>
-      <!-- Back -->
-      <div class="text-lg text-center font-light relative px-7">
-        <h1
-          class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
-          @click="goBack"
-        >
-          <font-awesome icon="chevron-left" class="fa-fw"></font-awesome>
-        </h1>
-      </div>
-
-      <!-- Heading -->
-      <h1 id="ViewHeading" class="text-4xl text-center font-light pt-4 mb-8">
+    <!-- Sub View Heading -->
+    <div id="SubViewHeading" class="flex gap-4 items-start mb-8">
+      <h1 class="grow text-xl text-center font-semibold leading-tight">
         Generate an Identity
       </h1>
+
+      <!-- Back -->
+      <a
+        class="order-first text-lg text-center leading-none p-1"
+        @click="goBack()"
+      >
+        <font-awesome icon="chevron-left" class="block text-center w-[1em]" />
+      </a>
+
+      <!-- Help button -->
+      <router-link
+        :to="{ name: 'help' }"
+        class="block ms-auto text-sm text-center text-white bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] p-1.5 rounded-full"
+      >
+        <font-awesome icon="question" class="block text-center w-[1em]" />
+      </router-link>
     </div>
 
     <!-- id used by puppeteer test script -->
-    <div id="start-question" class="mt-8">
+    <div id="start-question">
       <div class="max-w-3xl mx-auto">
         <p class="text-center text-xl font-light">
           How do you want to create this identifier?