Merge branch 'dev' into 'master' Implement first versions of file browser, text viewer and image viewer See merge request bohacfr2/apo-sem!1
feat: add filoperation error get text
feat: add get file local path so it can be executed
feat: implement basic directory browser window
fix: some file access function types
refactor: fix inconsistency in file access function definitions
feat: add structure for dynamic file access