fix: resolve overflow in title bar (#1159)

[Castropy]

Pull Request Details

Wrap markdownbody in expanded, so that it doesn't push outwards.
Prevent the text from jumping to a second line.
Add "..." if there's not enough space.

What issue does this PR address

• [Description]

Associated Issue

• This PR relates to issue #

Type of Change

• [X ] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Installed R.
Flutter run before code changes.
Overflow in titlte bar watched.
Changed code in home.dart.
Flutter run.
Please describe the tests that you ran to verify your changes.

Checklist

Complete the check-list below to ensure your branch is ready for PR.

• [X

] Screenshots included in linked issue # - [ ] Changes adhere to the [style and coding guidelines](https://survivor.togaware.com/gnulinux/flutter-style.html) - [ ] I have performed a self-review of my code - [x ] I have commented my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation - [ ] Any dependent changes have been merged and published in downstream modules - [ ] The update contains no confidential information - [ ] The update has no duplicated content - [ ] No lint check errors are related to these changes (`make prep` or `flutter analyze lib`) - [x ] Integration test `dart test` output or screenshot included in issue # - [ ] I tested the PR on these devices: - [ ] Android - [ ] iOS - [ ] Linux - [ ] MacOS - [x ] Windows - [ ] Web - [ ] I have identified reviewers - [ ] The PR has been approved by reviewers

Finalising

Once PR discussion is complete and reviewers have approved:

• Merge dev into the this branch
• Resolve any conflicts
• Add a one line summary into the CHANGELOG.md
• Push to the git repository and review
• Merge the PR into dev