T hoguet/issue5 (#37)

* enregistrer les calendar settings dans le localstorage
Fixes #5

* Refactor calendar settings service to use a definitions map for settings and update related components to access settings via a getter method

* Update src/app/services/calendar-settings-service.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Refactor calendar settings service to utilize a new storedSignal implementation for localStorage persistence and restore the stored-signal utility

* Update typescript-eslint to version 8.46.3 and enhance error handling in storedSignal function

* Update src/app/services/calendar-settings-service.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Enhance storedSignal function to accept an Injector for improved context handling in localStorage persistence

* Skip initial execution in storedSignal effect to prevent unnecessary localStorage writes

* Refactor get method in CalendarSettingsService to throw an error if the setting ID doesn't exist

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

package-lock.json

@@ -46,7 +46,7 @@
 				"karma-jasmine-html-reporter": "~2.1.0",
 				"prettier": "^3.6.2",
 				"typescript": "~5.9.2",
-				"typescript-eslint": "^8.19.1"
+				"typescript-eslint": "^8.46.3"
 			}
 		},
 		"node_modules/@acemir/cssom": {