refactor: clean up selection tests and remove unused rectangle selection logic

refactor: simplify read-only tests by removing drag-and-drop functionality

test: update sanitisation tests to check for safe attributes in HTML

test: enhance configuration tests to ensure proper toolbox popover visibility

test: adjust keyboard shortcuts tests for inline tool handling and modifier key mapping

test: modify toolbox tests to use more specific selectors for paragraph blocks

test: improve UI module tests to utilize block selection methods directly

chore: remove deprecated drag-and-drop tests and related code

fix: update paste module error messages for clarity on configuration issues

example/example-i18n.html

@@ -183,7 +183,6 @@
           "blockTunes": {
             "toggler": {
               "Click to tune": "Нажмите, чтобы настроить",
-              "or drag to move": "или перетащите"
             },
           },
           "inlineToolbar": {