Improve the visibility of selected/highlighted text in the stream title and description fields when using Restream’s light theme on Windows.

Currently, when users select text while editing their stream information, the selection highlight is a very faint light gray, making it difficult to distinguish the selected text from the surrounding content. This occurs both on the Restream website when updating stream details and within the Restream Stream Information interface in OBS. Restream supports updating these title and description fields from both workflows.

Increasing the contrast of the text selection highlight in the light theme would make it much clearer which text is currently selected and improve overall accessibility and usability.