Remove deprecated @types/classnames dependency from web project (#4548)

* Initial plan

* Remove deprecated @types/classnames dependency

Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: gabek <414923+gabek@users.noreply.github.com>

web/.knip.json

@@ -53,7 +53,6 @@
 		"@babel/core",
 		"i18next-scanner",
 		"@types/chart.js",
-		"@types/classnames",
 		"@types/video.js",
 		"@testing-library/jest-dom",
 		"@testing-library/react",

web/package-lock.json

@@ -88,7 +88,6 @@
 				"@svgr/webpack": "8.1.0",
 				"@testing-library/react": "^16.3.0",
 				"@types/chart.js": "4.0.1",
-				"@types/classnames": "2.3.4",
 				"@types/jest": "^30.0.0",
 				"@types/markdown-it": "14.1.2",
 				"@types/node": "22.17.2",
@@ -9245,17 +9244,6 @@
 				"chart.js": "*"
 			}
 		},
-		"node_modules/@types/classnames": {
-			"version": "2.3.4",
-			"resolved": "https://registry.npmjs.org/@types/classnames/-/classnames-2.3.4.tgz",
-			"integrity": "sha512-dwmfrMMQb9ujX1uYGvB5ERDlOzBNywnZAZBtOe107/hORWP05ESgU4QyaanZMWYYfd2BzrG78y13/Bju8IQcMQ==",
-			"deprecated": "This is a stub types definition. classnames provides its own type definitions, so you do not need this installed.",
-			"dev": true,
-			"license": "MIT",
-			"dependencies": {
-				"classnames": "*"
-			}
-		},
 		"node_modules/@types/conventional-commits-parser": {
 			"version": "5.0.1",
 			"resolved": "https://registry.npmjs.org/@types/conventional-commits-parser/-/conventional-commits-parser-5.0.1.tgz",

web/package.json

@@ -99,7 +99,6 @@
 		"@svgr/webpack": "8.1.0",
 		"@testing-library/react": "^16.3.0",
 		"@types/chart.js": "4.0.1",
-		"@types/classnames": "2.3.4",
 		"@types/jest": "^30.0.0",
 		"@types/markdown-it": "14.1.2",
 		"@types/node": "22.17.2",