feat: remove lodash dependency (#743)

Co-authored-by: Dominik Pschenitschni <mail@celement.de>
Reviewed-on: https://kolaente.dev/vikunja/frontend/pulls/743
Reviewed-by: konrad <k@knt.li>
Co-authored-by: dpschen <dpschen@noreply.kolaente.de>
Co-committed-by: dpschen <dpschen@noreply.kolaente.de>

src/helpers/find.ts

@@ -1,3 +0,0 @@
-export function findIndexById(array : [], id : string | number) {
-	return array.findIndex(({id: currentId}) => currentId === id)
-}

src/helpers/utils.ts

@@ -0,0 +1,22 @@
+export function findIndexById(array : [], id : string | number) {
+	return array.findIndex(({id: currentId}) => currentId === id)
+}
+
+export function includesById(array: [], id: string | number) {
+	return array.some(({id: currentId}) => currentId === id)
+}
+
+// https://github.com/you-dont-need/You-Dont-Need-Lodash-Underscore#_isnil
+export function isNil(value: any) {
+	return value == null
+}
+
+export function omitBy(obj: {}, check: (value: any) => Boolean): {} {
+	if (isNil(obj)) {
+		return {}
+	}
+
+	return Object.fromEntries(
+		Object.entries(obj).filter(([, value]) => !check(value)),
+	)
+}