Right-align measure-anchored text to the barline

[XiaoMigros]

Resolves: #22247

• I signed the CLA
• The title of the PR describes the problem it addresses
• Each commit's message describes its purpose and effects, and references the issue it resolves
• If changes are extensive, there is a sequence of easily reviewable commits
• The code in the PR follows the coding rules
• There are no unnecessary changes
• The code compiles and runs on my machine, preferably after each commit individually
• I created a unit test or vtest to verify the changes I made (if applicable)

[Jojo-Schmitz]

The VTests show issues, before:

after:

See #22554 (comment)

Edit: fixed now ;-)

[Jojo-Schmitz]

Vtest shows the change for the better: