Renders a list of Bootstrap link buttons for reports referenced by type and code in the query.
BUTTON — set as ReportType in def_report.
def Render(self, Param1="", Param2="", Param3="") -> str:
Each query row supplies a type (col 0) and a code (col 1). When the type is report or rep, the report's title, glyph, and colour are looked up from def_report and a full-width Bootstrap anchor button is rendered linking to /report/rep=<code>.