Basically, I am trying to edit the value of the search input on SharePoint Online. Instead of showing OOTB value "Search this site", I would like to show a custom text.
I have found multiple articles on how to achieve this on a SharePoint On Premises solution, but these solutions don't seem to be feasible using SharePoint Online, as they require editing property ServerInitialRender
inside SearchArea.xml, as described here
Any advice?