Adding updates to tweak the dashboard.

[tnylea]

While working on a way to add multiple dashboard shells which include styles that have a sidebar and other variations of dashboard templates. These tweaks were needed to make all the pages consistent.

[what-the-diff]

PR Summary

• Enhanced Aesthetic Value and Space Management in Class Layout
  Aesthetic values and space management were improved in the class layout by adding a mb-5 class to the header element in app.blade.php. This increases the margin at the bottom of the header, providing better space distribution.

• Updated Class Structure in Dashboard Page
  The structure of classes in the dashboard page was updated to optimize the layout in index.blade.php, leading to a cleaner and more efficient code.

• Applied Consistent Styling Across Layouts
  The same mb-5 class was added to the header element in the app.blade.php of default layout. This ensures consistency across different layouts and maintains a uniform style.

• Cleanup in Dashboard Code
  Removed irrelevant and unused code comments in the dashboard page index.blade.php under default resources, decluttering the code and making it easier to understand and maintain.

• Removed Unnecessary Code
  Erased the last line of the code in index.blade.php under the dashboard page of the default resources. This was an extra line that served no functionality and could cause confusion during code interpretation.