Various queries

Hello

1. On the Jobs page how can I translate the texts, marked in the image I attach

2. In the job search area, we can make it drop-down like the workplace area, that is, it is displayed and a search box is displayed but also the list of available jobs

3. How do I replace the image that appears by default in the header every time a new page is created. That is, I want to set a default image of mine for all the pages I create in the future and not be replacing it every time I create a new page.

Thank you