IV: make no-video-src message more prominent

Description

Eg. make this:


look something like this:

Acceptance Criteria

Get the user's attention!

Status

Assignee

Andreas Nergaard

Reporter

Pål Jørgensen

Labels

Funding

None

Code reviewer

Pål Jørgensen

Released

None

Time tracking

2h

Fix versions

Priority

High
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