SS-59 page names in title

[churnikov]

Status

• [ ] Ready
• [ x ] Draft
• [ ] Hold

Description

I added custom titles to all pages and tried to add tests for them. It's not really trival as it turns out.

Types of changes

What types of changes does your code introduce to STACKn?

• [ ] Hotfix (fixing a critical bug in production)
• [ ] Bugfix
• [ ] New feature
• [ ] Documentation update

Checklist

If you're unsure about any of the items below, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code.

• [ x ] This pull request is against develop branch (not applicable for hotfixes)
• [ x ] I have included a link to the issue on GitHub or JIRA (if any)
• [ ] I have included migration files (if there are changes to the model classes)
• [ ] I have read the CONTRIBUTING doc
• [ x ] I have included tests to complement my changes
• [ ] I have updated the related documentation (if necessary)
• [ ] I have updated the release notes (docs/releasenotes.md)
• [ ] I have added a reviewer for this pull request
• [ ] I have added myself as an author for this pull request

Further comments

Anything else you think we should know before merging your code!