Remove reference to non-existent 'more information' from signature tooltip

The signature tooltip says ", expand farm details to see more information", but there is no information about signatures in the farm details. This is confusing. The existing "Expand details about each farm" tooltip at the top of the farm list seems like enough. This PR removes that text in every translation, using Cursor with the prompt: ``` Delete this text in every translation: ", expand farm details to see more information" ``` I have verified the English and French translations, the Spanish, German and Serbian look right, and the rest follow the structure of the English sentences.