text: Title: [FEATURE] Include category tabs (all/images/news/etc) in header
  Body: **Describe the bug**
  The image tab has a different layout (CSS?) from the other tabs like "all", "videos", "news". The text of the menu is bigger on the image tab.
  Moreover, in the image tab I'm not able to access maps nor books, those links aren't displayed.
  
  ![image](https://user-images.githubusercontent.com/4016501/115998392-83567d80-a5d6-11eb-8e41-c184a4d1348f.png)
  ![image](https://user-images.githubusercontent.com/4016501/115998404-95382080-a5d6-11eb-89b7-2280c621e16e.png)
  
  Is this intended? It's a bit disturbing to have a sudden change of layout like this.
  
  **To Reproduce**
  Steps to reproduce the behavior:
  1. Do a search.
  2. Click on the "image" link in the menu.
  3. See different layout from the previous page
  
  **Deployment Method**
  - [ ] Heroku (one-click deploy)
  - [ ] Docker
  - [ ] `run` executable
  - [x] pip/pipx
  - [ ] Other: [describe setup]
  
  **Version of Whoogle Search**
  - [x] Latest build from [source] (i.e. GitHub, Docker Hub, pip, etc)
  - [ ] Version [version number]
  - [ ] Not sure
  
  
  **Desktop (please complete the following information):**
   - OS: ArchLinux
   - Browser: Firefox
   - Version: 88.0 (64-bit)
  
  **Additional context**
  Add any other context about the problem here.
  