Some fixes in translated strings

- doesn't make sense to translate "%1"
- showPreprocessedFile: "reason" contains full stop, put at the end
- add missing closing >
- remove whitespace at the end of translated string
- added missing quotes and full stops
- Remove some control text from tr

Change-Id: I5537c3d12d038e25e2209af1198129fbf959b43c
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>

src/plugins/git/gitclient.cpp

@@ -2862,7 +2862,7 @@ bool GitClient::addAndCommit(const FilePath &repositoryDirectory,
         GitPlugin::updateCurrentBranch();
         return true;
     }
-    VcsOutputWindow::appendError(Tr::tr("Cannot commit %n files\n", nullptr, commitCount));
+    VcsOutputWindow::appendError(Tr::tr("Cannot commit %n files", nullptr, commitCount) + "\n");
     return false;
 }