Update localization template .pot file (#793)

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Update localization template .pot file (#779)

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Update localization template .pot file (#774)

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Update localization template .pot file (#770)

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Update localization template .pot file (#766)

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Update localization template .pot file (#762)

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Update localization template .pot file (#759)

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Update localization template .pot file (#754)

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Update changelog for v5.15.5

Compile localization .mo files (#738)

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