Refactor names (#31405)

This PR only does "renaming":

* `Route` should be `Router` (and chi router is also called "router")
* `Params` should be `PathParam` (to distingush it from URL query param, and to match `FormString`)
* Use lower case for private functions to avoid exposing or abusing

services/context/org.go

@@ -41,7 +41,7 @@ func (org *Organization) CanReadUnit(ctx *Context, unitType unit.Type) bool {
 }
 
 func GetOrganizationByParams(ctx *Context) {
-	orgName := ctx.Params(":org")
+	orgName := ctx.PathParam(":org")
 
 	var err error
 
@@ -221,7 +221,7 @@ func HandleOrgAssignment(ctx *Context, args ...bool) {
 		ctx.Data["NumTeams"] = len(ctx.Org.Teams)
 	}
 
-	teamName := ctx.Params(":team")
+	teamName := ctx.PathParam(":team")
 	if len(teamName) > 0 {
 		teamExists := false
 		for _, team := range ctx.Org.Teams {