LibWeb: Normalize all WebIDL definition lines to four leading spaces

This change takes all existing WebIDL files in the repo that had
definition lines without four leading spaces, and fixes them so they
have four leading spaces.

Userland/Libraries/LibWeb/Crypto/SubtleCrypto.idl

@@ -15,8 +15,7 @@ dictionary RsaOtherPrimesInfo {
     DOMString t;
 };
 
-dictionary JsonWebKey
-{
+dictionary JsonWebKey {
     // The following fields are defined in Section 3.1 of JSON Web Key
     DOMString kty;
     DOMString use;

Userland/Libraries/LibWeb/HTML/HTMLAllCollection.idl

@@ -1,8 +1,7 @@
 #import <DOM/Element.idl>
 #import <DOM/HTMLCollection.idl>
 
-[Exposed=Window,
- LegacyUnenumerableNamedProperties]
+[Exposed=Window, LegacyUnenumerableNamedProperties]
 interface HTMLAllCollection {
     readonly attribute unsigned long length;
     getter Element (unsigned long index);

Userland/Libraries/LibWeb/SVG/SVGSVGElement.idl

@@ -20,7 +20,7 @@ interface SVGSVGElement : SVGGraphicsElement {
 
     undefined deselectAll();
 
-  // FIMXE: SVGNumber createSVGNumber();
+    // FIXME: SVGNumber createSVGNumber();
     SVGLength createSVGLength();
     [FIXME] SVGAngle createSVGAngle();
     DOMPoint createSVGPoint();