Update Angular to 19 (#1241)

* update all dependencies and devDependencies to work with angular 19

fix as much deprecations as possible

make all components, pipes and directives not standalone

rename scss files to use underscore and make new scss work

fix bootstrap theme not working anymore and fix bug caused by this and simplify path used to access _variables.scss

remove the this from all variables/functions inside templates because its deprecated

fix another scss deprecation because you shouldnt have declerations after nested rules

override glob so newest glob version gets used instead of deprecated version

make sidepanel not fullscreen

make all filepaths used in @use consistent

override jsdom version to remove all deprecations make filepaths in scss @use all the same

change import to use

remove not needed variable declerations

add comment to why intellij shows an error

use interpolation in calc methods that use vars and namespaces

fix faults made while rebasing

remove override and update setup-jest.ts

update package lock

remove unused jest dependency

update npm version to 11.0.0

regen package-lock

regen package-lock

run formatter and turn prefer standalone rule off

* regen package-lock

* run prettier formatter

* fix error inside custom bootstrap

* regen package-lock

* update all dependencies to newest again

* fix linting, was destroyed on rebase

---------

Co-authored-by: peggimann <[email protected]>

frontend/eslint.config.mjs

@@ -31,11 +31,6 @@ export default tsEslint.config(
       ...tsEslint.configs.stylistic,
       ...angular.configs.tsRecommended,
     ],
-    languageOptions: {
-      parserOptions: {
-        project: ['./tsconfig.json', './tsconfig.spec.json'],
-      },
-    },
     processor: angular.processInlineTemplates,
     languageOptions: {
       parserOptions: {
@@ -151,6 +146,7 @@ export default tsEslint.config(
           style: 'kebab-case',
         },
       ],
+      '@angular-eslint/prefer-standalone': 'off',
       '@typescript-eslint/naming-convention': [
         'error',
         {