Merge branch 'v2_8_0'

...tmaster/transactions/TransactionSearchSpecifications.java

...locker8/budgetmaster/transactions/TransactionService.java

...eadlocker8/budgetmaster/transactions/TransactionType.java

...in/java/de/deadlocker8/budgetmaster/utils/DateHelper.java

...dlocker8/budgetmaster/utils/eventlistener/DateRepair.java

src/main/resources/application.properties

...n/resources/charts/IncomesAndExpendituresByCategoryBar.js

...rces/charts/IncomesAndExpendituresPerMonthByCategories.js

src/main/resources/languages/base_de.properties

src/main/resources/languages/base_en.properties

src/main/resources/languages/news_de.properties

src/main/resources/languages/news_en.properties

src/main/resources/static/js/charts.js

src/main/resources/static/js/globalDatePicker.js

src/main/resources/static/js/hotkeys.js

src/main/resources/static/js/libs/plotly.min.js

src/main/resources/static/js/main.js

src/main/resources/static/js/transactions.js

src/main/resources/templates/charts/newChart.ftl

src/main/resources/templates/helpers/header.ftl