[FE] Content-Panel: Blogs: General Improvements

[edichoska]

Style Improvements

The blogs and tags pages should look the same, they would only differ in the content shown, and some actions.

• The search bar and filter bar should look the same, Also the Add New button should look the same as the buttons in the tags page. Additionally all should have same height.
• When there is no content/ no tags we should show the message without the orange background! (This should be done in both places)

Functionality Improvements

• Remove dashboard page, the dashboard would be the main page(index.tsx) inside the content panel dir