Create a struct with all of Hugo's config options

Primary motivation is documentation, but it will also hopefully simplify the code.

Also,

* Lower case the default output format names; this is in line with the custom ones (map keys) and how
it's treated all the places. This avoids doing `stringds.EqualFold` everywhere.

Closes #10896
Closes #10620

tpl/strings/strings.go

@@ -33,17 +33,14 @@ import (
 
 // New returns a new instance of the strings-namespaced template functions.
 func New(d *deps.Deps) *Namespace {
-	titleCaseStyle := d.Cfg.GetString("titleCaseStyle")
-	titleFunc := helpers.GetTitleFunc(titleCaseStyle)
-	return &Namespace{deps: d, titleFunc: titleFunc}
+	return &Namespace{deps: d}
 }
 
 // Namespace provides template functions for the "strings" namespace.
 // Most functions mimic the Go stdlib, but the order of the parameters may be
 // different to ease their use in the Go template system.
 type Namespace struct {
-	titleFunc func(s string) string
-	deps      *deps.Deps
+	deps *deps.Deps
 }
 
 // CountRunes returns the number of runes in s, excluding whitespace.
@@ -163,6 +160,7 @@ func (ns *Namespace) ContainsAny(s, chars any) (bool, error) {
 
 // ContainsNonSpace reports whether s contains any non-space characters as defined
 // by Unicode's White Space property,
+// <docsmeta>{"newIn": "0.111.0" }</docsmeta>
 func (ns *Namespace) ContainsNonSpace(s any) bool {
 	ss := cast.ToString(s)
 
@@ -383,8 +381,7 @@ func (ns *Namespace) Title(s any) (string, error) {
 	if err != nil {
 		return "", err
 	}
-
-	return ns.titleFunc(ss), nil
+	return ns.deps.Conf.CreateTitle(ss), nil
 }
 
 // FirstUpper converts s making  the first character upper case.