Cypress typescript (#13591)

* convert Cypress tests to TypeScript

this work was done by @lunaisnotaboy https://github.com/lunaisnotaboy
for their fork https://github.com/cutiekey/cutiekey/pull/7

I just repacked their changes into a minimal set

* fix call to `window` in cypress tests

this error was spotted thanks to the TypeScript compiler:

```
support/commands.ts:33:12 - error TS2559: Type '(win: any) => void'
has no properties in common with type 'Partial<Loggable &
Timeoutable>'.

33  cy.window(win => {
              ~~~~~~~~

Found 1 error in support/commands.ts:33
```

(again, @lunaisnotaboy did the actual work)

9 files changed, 38 insertions, 1 deletions

diff --git a/cypress/e2e/basic.cy.js b/cypress/e2e/basic.cy.ts
index d2525e0a7d..d2525e0a7d 100644
--- a/cypress/e2e/basic.cy.js
+++ b/cypress/e2e/basic.cy.ts
diff --git a/cypress/e2e/router.cy.js b/cypress/e2e/router.cy.ts
index 8d8fb3af31..8d8fb3af31 100644
--- a/cypress/e2e/router.cy.js
+++ b/cypress/e2e/router.cy.ts
diff --git a/cypress/e2e/widgets.cy.js b/cypress/e2e/widgets.cy.ts
index 847801a69f..847801a69f 100644
--- a/cypress/e2e/widgets.cy.js
+++ b/cypress/e2e/widgets.cy.ts
diff --git a/cypress/support/commands.js b/cypress/support/commands.ts
index 91a4d7abe6..c2d92e1663 100644
--- a/cypress/support/commands.js
+++ b/cypress/support/commands.ts
@@ -30,7 +30,7 @@ Cypress.Commands.add('visitHome', () => {
 })
 
 Cypress.Commands.add('resetState', () => {
-	cy.window(win => {
+	cy.window().then(win => {
 		win.indexedDB.deleteDatabase('keyval-store');
 	});
 	cy.request('POST', '/api/reset-db', {}).as('reset');
diff --git a/cypress/support/e2e.js b/cypress/support/e2e.ts
index 827a326d18..827a326d18 100644
--- a/cypress/support/e2e.js
+++ b/cypress/support/e2e.ts
diff --git a/cypress/support/index.ts b/cypress/support/index.ts
new file mode 100644
index 0000000000..c1bed21979
--- /dev/null
+++ b/cypress/support/index.ts
@@ -0,0 +1,19 @@
+declare global {
+	namespace Cypress {
+		interface Chainable {
+			login(username: string, password: string): Chainable<void>;
+
+			registerUser(
+				username: string,
+				password: string,
+				isAdmin?: boolean
+			): Chainable<void>;
+
+			resetState(): Chainable<void>;
+
+			visitHome(): Chainable<void>;
+		}
+	}
+}
+
+export {}
diff --git a/cypress/tsconfig.json b/cypress/tsconfig.json
new file mode 100644
index 0000000000..6fe7f32cc4
--- /dev/null
+++ b/cypress/tsconfig.json
@@ -0,0 +1,8 @@
+{
+	"compilerOptions": {
+		"lib": ["dom", "es5"],
+		"target": "es5",
+		"types": ["cypress", "node"]
+	},
+	"include": ["./**/*.ts"]
+}
diff --git a/package.json b/package.json
index 41b865456d..8f5ab0b124 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
 		"typescript": "5.3.3"
 	},
 	"devDependencies": {
+		"@types/node": "^20.11.28",
 		"@typescript-eslint/eslint-plugin": "7.1.0",
 		"@typescript-eslint/parser": "7.1.0",
 		"cross-env": "7.0.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2906eef4d8..4c1e228a95 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -44,6 +44,9 @@ importers:
         specifier: 4.4.0
         version: 4.4.0
     devDependencies:
+      '@types/node':
+        specifier: ^20.11.28
+        version: 20.11.28
       '@typescript-eslint/eslint-plugin':
         specifier: 7.1.0
         version: 7.1.0(@typescript-eslint/parser@7.1.0)(eslint@8.57.0)(typescript@5.3.3)
@@ -7650,6 +7653,12 @@ packages:
     dependencies:
       undici-types: 5.26.5
 
+  /@types/node@20.11.28:
+    resolution: {integrity: sha512-M/GPWVS2wLkSkNHVeLkrF2fD5Lx5UC4PxA0uZcKc6QqbIQUJyW1jVjueJYi1z8n0I5PxYrtpnPnWglE+y9A0KA==}
+    dependencies:
+      undici-types: 5.26.5
+    dev: true
+
   /@types/node@20.11.5:
     resolution: {integrity: sha512-g557vgQjUUfN76MZAN/dt1z3dzcUsimuysco0KeluHgrPdJXkP/XdAURgyO2W9fZWHRtRBiVKzKn8vyOAwlG+w==}
     dependencies: