documentation/Added javadoc in frontent project

src/components/BaseComponents/Input/BaseInput.vue

src/components/BaseComponents/NavBar.vue

src/components/Budget/Modal/MiniBudgetBox.vue

src/components/Configuration/ChallangeCheckBox.vue

src/components/Configuration/ConfigurationParent.vue

...mponents/Configuration/ConfigurationSteps/BankAccount.vue

...figuration/ConfigurationSteps/ConfigurationSavingGoal.vue

...s/Configuration/ConfigurationSteps/SuitableChallenges.vue

src/components/Exceptions/ErrorBoundaryCatcher.vue

src/components/Exceptions/NotFoundPage.vue

src/components/Exceptions/UnauthorizedPage.vue

src/components/Friends/UserFriends.vue

src/components/Leaderboard/LeaderboardRank.vue

src/components/Leaderboard/LeaderboardTable.vue

src/components/Login/ChangePassword.vue

src/components/Login/ForgottenPassword.vue

src/components/Login/LoginForm.vue

src/components/News/NewsFeed.vue

src/components/Settings/SettingsAccount.vue

src/components/Settings/SettingsBank.vue