Change pencil icon to pen with square to be consistent with the rest of the app

shimatta_kenkyusho/parts/views.py

@@ -978,6 +978,6 @@ class ManufacturerDetailViewSet(LoginRequiredMixin, BaseTemplateMixin, DetailVie
 def health_check_view(request) -> HttpResponse:
     """
     Health checking view. Returns empty http response with HTTP status OK.
-    This will be used to check 
+    This will be used to check if the system is actually running correctly
     """
     return HttpResponse(status=200)

shimatta_kenkyusho/templates/parts/stocks-detail.html

@@ -30,7 +30,7 @@
                 {% endif %}
                 <button type="button" class="btn btn-danger" data-bs-toggle="modal" data-bs-target="#delete-storage-modal">Delete</button>
                 <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#add-sub-modal"><i class="bi bi-plus-circle"></i></button>
-                <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#change-modal"><i class="bi bi-pen-fill"></i></button>
+                <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#change-modal"><i class="bi bi-pencil-square"></i></button>
                 </h1>
                 <div class="list-group">
                 {% for storage in storages %}