* moves message rendering directly below navigation menu for a more closed look
* reworks message rendering on before_states and after_states for all compensation related datatypes
* reworks layout of action column on all related data card tables
* resizes certain attribute layouts on related data card tables
* reworks layout of details on CompensationState and CompensationAction rendering from own column into subgrouped placement of main type info
* drops align-middle placement for all related data card table contents
* refactors documents and file upload to be distributed into different subfolders, depending on the type of document (InterventionDocument, RevocationDocument, ...)
* refactors Document model into AbstractDocument
* subclasses RevocationDocument, InterventionDocument, COmpensationDocument, EmaDocument and EcoAccountDocument from AbstractDocument to provide proper functionality for each
* adds new specialized routes for each new document type (opening, removing)
* drops generic get and remove routes for documents
* adds eco-account own includes for simpler maintainability instead of refactoring to generic includes for compensation app and predefining urls and stuff on the backend
* adds before-state, after-state, actions, deadlines, documents and withdraws to eco account detail view
* adds hint for invalid withdraw in intervention detail view in case of deleted eco account
* adds/updates translations