Update character assets and add matplotlib dependency

Re-indexes character image files in the static directory and adds matplotlib to the project dependencies to support font and image processing.

package-lock.json

@@ -147,7 +147,6 @@
 				}
 			],
 			"license": "MIT",
-			"peer": true,
 			"dependencies": {
 				"baseline-browser-mapping": "^2.9.0",
 				"caniuse-lite": "^1.0.30001759",
@@ -514,7 +513,6 @@
 				}
 			],
 			"license": "MIT",
-			"peer": true,
 			"dependencies": {
 				"nanoid": "^3.3.11",
 				"picocolors": "^1.1.1",
@@ -753,7 +751,6 @@
 			"resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.4.tgz",
 			"integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
 			"license": "MIT",
-			"peer": true,
 			"engines": {
 				"node": ">=12"
 			},