towards UTF-8-Isabelle symbol encoding;

updated to VSCode 1.65.0;

clarified char symbols: cover most European languages;

more elementary Symbol.Matcher without detour via Regex (see also Pure/General/symbol_explode.ML);

tuned comments; tuned imports;

more robust dependencies: avoid implicit update, escpecially of underlying vscode engine;

proper file headers;

added count_list lemmas

tuned message;

more compact result;

prepare patched version more thoroughly, with explicit patches;

tuned signature;

recover platform-specific node binaries from original download, notably for node-pty for Terminal;

tuned message;

tuned;

tuned imports;

misc tuning and clarification;

more executable files; clarified modules;

tuned;

tuned output;

clarified signature;

tuned, based on suggestions by IntelliJ IDEA;

tuned;

clarified command-line options;

update official Isabelle release, notably for "Admin/init -R";

more robust;

build component for VSCodium (cross-compiled from sources for all platforms);

tuned signature: more robust operation;

clarified order;

proper antiquotations (amending ff784d5a5bfb);