Inspector frontend UI (#68)

This PR begins fleshing out the front-end UI for inspecting the selected
entity's components.

### Implemented
* Support for the `Name` component
* Placeholder/WIP support for the `Transform` component

### To-do
* Support for sending changes made in the inspector back to Bevy
* A slider/field combo widget for numeric values (can be adapted from
  [this StackBlitz](https://stackblitz.com/edit/angular-wfikuy?file=src%2Ffloat-input%2Ffloat-input.component.ts))
* Quat -> Euler angles conversion ([example math here](https://github.com/dannymcgee/3DGameMath/blob/5cb7a8ff9310565329e57751cd8b9c33e9bd4cb7/libs/Math/include/math/quat.inl.hpp#L56-L78),
  or use a 3rd-party math library)

### Known issues
* Selecting entities from the hierarchy doesn't always update the
  components list. I suspect this is the same issue as #39

framework/src/lib/di/types.ts

@@ -1,13 +1,18 @@
-import { AbstractCtor, Ctor } from "@storyteller/utility";
+import { type AbstractCtor, type Ctor, type Fn } from "@storyteller/utility";
+import { type PropertyValues } from "lit";
 
 export class UniqueToken {
 	get id() { return this.#id; }
 	readonly #id: symbol;
 
-	constructor (name: string) {
+	private constructor (name: string) {
 		this.#id = Symbol(name);
 	}
 
+	static create<T>(name?: string): Token<T> {
+		return new UniqueToken(name ?? crypto.randomUUID());
+	}
+
 	toString(): string {
 		return `UniqueToken(${String(this.#id)})`;
 	}
@@ -23,3 +28,15 @@ export interface Provider<T> {
 	token: Token<T>;
 	value: T;
 }
+
+export interface DynamicProvider<T> {
+	addEventListener(
+		type: "property-changes",
+		listener: Fn<[CustomEvent<PropertyValues<T>>], any>,
+	): void;
+
+	removeEventListener(
+		type: "property-changes",
+		listener: Fn<[CustomEvent<PropertyValues<T>>], any>,
+	): void;
+}