Fix SQL Query for SearchTeam (#20844)

- Currently the function takes in the `UserID` option, but isn't being
used within the SQL query. This patch fixes that by checking that only
teams are being returned that the user belongs to.

Fix #20829

Co-authored-by: delvh <dev.lh@web.de>

routers/web/org/teams.go

@@ -339,7 +339,7 @@ func SearchTeam(ctx *context.Context) {
 	}
 
 	opts := &organization.SearchTeamOptions{
-		UserID:      ctx.Doer.ID,
+		// UserID is not set because the router already requires the doer to be an org admin. Thus, we don't need to restrict to teams that the user belongs in
 		Keyword:     ctx.FormTrim("q"),
 		OrgID:       ctx.Org.Organization.ID,
 		IncludeDesc: ctx.FormString("include_desc") == "" || ctx.FormBool("include_desc"),