chore: Standardize code, comments and docs on US-English spelling (#2707)

tests/browser/dom.ts

@@ -92,7 +92,7 @@ export const tabUntil = async (
 
 /**
  * Click an element with a real pointer, which is the only kind that carries the
- * browser's own behaviour: the press moves focus, and an element that stops the
+ * browser's own behavior: the press moves focus, and an element that stops the
  * press doing so leaves it where it was.
  */
 export const clickElement = async (element: Element): Promise<void> =>

tests/browser/fake-hass.ts

@@ -92,12 +92,12 @@ const createRegistryEntry = (entityID: string, overrides?: Partial<Entity>): Ent
  * A driveable stand-in for the `hass` object the card is handed by Home
  * Assistant.
  *
- * Home Assistant updates immutably, and that is the behaviour reproduced here:
- * a change hands consumers a new top-level object and a new `states` map
- * holding a new state object for the entity that changed, while every other
- * entity keeps the object it already had. Anything the card can observe about
- * a real `hass` it must be able to observe about this one, so a divergence here
- * is a bug in the fake rather than a shortcut worth taking.
+ * Home Assistant updates immutably, and that is the behavior reproduced here: a
+ * change hands consumers a new top-level object and a new `states` map holding
+ * a new state object for the entity that changed, while every other entity
+ * keeps the object it already had. Anything the card can observe about a real
+ * `hass` it must be able to observe about this one, so a divergence here is a
+ * bug in the fake rather than a shortcut worth taking.
  */
 export class FakeHASS {
   private _hass: HomeAssistant;

tests/browser/ha-element-stubs.ts

@@ -40,8 +40,8 @@ class HAPlayerStandIn extends LitElement {
 }
 
 /**
- * A stand-in that renders its children and nothing else. Behaviour is added
- * only for elements the card is observed to depend on.
+ * A stand-in that renders its children and nothing else. Behavior is added only
+ * for elements the card is observed to depend on.
  */
 class HAElementStub extends LitElement {
   static styles = css`

tests/browser/mounted-card.ts

@@ -158,11 +158,11 @@ interface EventEntry {
   target: EventTarget | null;
 }
 
-interface LabelledElement extends Element {
+interface LabeledElement extends Element {
   label?: string;
 }
 
-const hasLabel = (element: Element): element is LabelledElement => 'label' in element;
+const hasLabel = (element: Element): element is LabeledElement => 'label' in element;
 
 /**
  * What a control calls itself to the user. The card titles the controls it

tests/browser/style.ts

@@ -36,7 +36,7 @@ const HOME_ASSISTANT_THEME = `
     color: var(--primary-text-color);
   }
 
-  /* A dashboard sits the card on the background colour with room around it. */
+  /* A dashboard sits the card on the background color with room around it. */
   body {
     background: var(--primary-background-color);
     margin: 0;

tests/browser/test-media.ts

@@ -87,13 +87,13 @@ export const getTestMediaRequestCount = (url: string): number => {
 /**
  * Serves a fixture at `/test-media/<file>`, behaving as the query asks:
  *
- *   token      Which counter the request belongs to, so that a test's
- *              behaviour does not depend on what ran before it.
- *   responses  The status to answer each request with, in order: `200` serves
- *              the file and anything else is sent as an empty error.
- *   repeat     What to do once the `responses` list is exhausted: answer every
- *              request after it as the last one was, or never answer again
- *              (i.e. camera going quiet).
+ *   token      Which counter the request belongs to, so that a test's behavior
+ *              does not depend on what ran before it. responses  The status to
+ *              answer each request with, in order: `200` serves the file and
+ *              anything else is sent as an empty error. repeat     What to do
+ *              once the `responses` list is exhausted: answer every request
+ *              after it as the last one was, or never answer again (i.e. camera
+ *              going quiet).
  *
  * Answered from within the page rather than by a server, because a request the
  * page is still waiting on holds one of the handful of connections a browser