Trim unnecessary trailing spaces from string resources in Strings.resx

PR Summary

Some strings in Strings.resx have unnecessary trailing spaces. This patch removes them.

[x] PR has a meaningful title
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[x] Summarized changes
[x] Change is not breaking
[x] Make sure all .cs, .ps1 and .psm1 files have the correct copyright header
[x] Make sure you've added a new test if existing tests do not effectively test the code changed and/or updated documentation
[x] This PR is ready to merge and is not Work in Progress.
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