localization: Move from `orangecanvas.utils` to `orangecanvas` #491

Job	Run time
test (ubuntu-20.04, 3.9, PyQt5~=5.14.0)	1m 22s
test (ubuntu-20.04, 3.10, PyQt5~=5.15.0)	1m 19s
test (ubuntu-20.04, 3.11, PyQt5~=5.15.0)	1m 17s
test (ubuntu-20.04, 3.11, PyQt6~=6.2.3 PyQt6-Qt6~=6.2.3)	1m 26s
test (ubuntu-22.04, 3.11, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0, glibc-tools)	1m 32s
test (ubuntu-22.04, 3.12, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0, glibc-tools)	1m 26s
test (ubuntu-22.04, 3.13, PyQt6~=6.7.0 PyQt6-Qt6~=6.7.0, glibc-tools)	1m 49s
test (macos-13, 3.9, PyQt5~=5.14.0)	1m 16s
test (macos-13, 3.10, PyQt5~=5.15.0)	1m 3s
test (macos-14, 3.11, PyQt5~=5.15.0)	44s
test (macos-15, 3.11, PyQt6~=6.2.3 PyQt6-Qt6~=6.2.3)	44s
test (macos-latest, 3.11, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0)	46s
test (macos-latest, 3.12, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0)	50s
test (macos-latest, 3.13, PyQt6~=6.7.0 PyQt6-Qt6~=6.7.0)	47s
test (windows-2019, 3.9, PyQt5~=5.15.0)	1m 56s
test (windows-2019, 3.10, PyQt5~=5.15.0)	1m 48s
test (windows-2019, 3.11, PyQt5~=5.15.0)	1m 48s
test (windows-2019, 3.11, PyQt6~=6.2.3 PyQt6-Qt6~=6.2.3)	1m 55s
test (windows-2019, 3.11, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0)	1m 55s
test (windows-2019, 3.12, PyQt6~=6.5.0 PyQt6-Qt6~=6.5.0)	1m 55s
test (windows-2019, 3.13, PyQt6~=6.7.0 PyQt6-Qt6~=6.7.0)	2m 51s
	30m 29s

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