Merge pull request 'chore: move to Eslint flat config' (#5662) from gusted/forgejo-flat-config into forgejo

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/5662
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>

tests/e2e/.eslintrc.yaml

@@ -1,24 +0,0 @@
-plugins:
-  - eslint-plugin-playwright
-
-extends:
-  - ../../.eslintrc.yaml
-  - plugin:playwright/recommended
-
-parserOptions:
-  sourceType: module
-  ecmaVersion: latest
-
-env:
-  browser: true
-
-rules:
-  playwright/no-conditional-in-test: [0]
-  playwright/no-conditional-expect: [0]
-  playwright/no-networkidle: [0]
-  playwright/no-skipped-test: [2, {allowConditional: true}]
-  playwright/prefer-comparison-matcher: [2]
-  playwright/prefer-equality-matcher: [2]
-  playwright/prefer-to-contain: [2]
-  playwright/prefer-to-have-length: [2]
-  playwright/require-to-throw-message: [2]