Fix text overflow in Source Interface replies

[ghost]

Status

Ready for review

Description of Changes

I couldn't find an issue for this. I hope it's alright if I fixed it. The issue is when long text is displayed in the "Read Replies" box, the text would overflow out of the box. This patch fixes it.

Testing

1. make dev
2. Go to http://localhost:8080.
3. Click on "Log in".
4. Enter the test codename for last source (3/3) in the test file.
5. The long word no longer overflow out of the "Read replies" box with this patch.

Deployment

N/A

Checklist

If you made changes to the server application code:

• Linting (make lint) and tests (make test) pass in the development container

If you made changes to securedrop-admin:

• Linting and tests (make -C admin test) pass in the admin development container

If you made changes to the system configuration:

• Configuration tests pass

If you added or removed a file deployed with the application:

• I have updated AppArmor rules to include the change

If you made non-trivial code changes:

• I have written a test plan and validated it for this PR

Choose one of the following:

• I have opened a PR in the docs repo for these changes, or will do so later
• I would appreciate help with the documentation
• These changes do not require documentation

[codecov-commenter]

Codecov Report

Merging #6301 (9ea0fbd) into develop (ecd6b2b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #6301   +/-   ##
========================================
  Coverage    84.07%   84.07%           
========================================
  Files           60       60           
  Lines         4208     4208           
  Branches       508      508           
========================================
  Hits          3538     3538           
  Misses         549      549           
  Partials       121      121           

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[legoktm]

Hi @zishanmirza, thanks for the PR! I tested it using your test plan and functionally it looks good to me.

Before:

After:

Besides the one inline comment, I have one small nitpick: could you edit the first line of your commit message to be active and specify what component is being fixed. Like, "Fix text overflow in Source Interface replies".

[ghost]

I have changed the commit message title.

[legoktm]

LGTM, thanks for the contribution!