Feat: bank / pattern import / export feature + documentation

src/app/dispatch.rs

@@ -105,6 +105,10 @@ impl App {
             AppCommand::ResetBank { bank } => self.reset_bank(bank),
             AppCommand::CopyPattern { bank, pattern } => self.copy_pattern(bank, pattern),
             AppCommand::PastePattern { bank, pattern } => self.paste_pattern(bank, pattern),
+            AppCommand::SharePattern { bank, pattern } => self.share_pattern(bank, pattern),
+            AppCommand::ImportPattern { bank, pattern } => self.import_pattern(bank, pattern),
+            AppCommand::ShareBank { bank } => self.share_bank(bank),
+            AppCommand::ImportBank { bank } => self.import_bank(bank),
             AppCommand::CopyPatterns { bank, patterns } => self.copy_patterns(bank, &patterns),
             AppCommand::PastePatterns { bank, start } => self.paste_patterns(bank, start),
             AppCommand::CopyBank { bank } => self.copy_bank(bank),