dev/refactoring register commands (#1815)

* Move the text register commands to command classes

* Rename text register commands and contexts following the original Emacs command names

* Add messages

* Fix copyToRegister to set a new mark

keybinding-generator/generate-keybindings.mts

@@ -311,18 +311,18 @@ export function generateKeybindingsForRegisterCommands(): KeyBinding[] {
   for (const char of asciiPrintableChars) {
     keybindings.push({
       key: char,
-      when: "emacs-mcx.inRegisterSaveMode && editorTextFocus",
-      command: "emacs-mcx.RegisterSaveCommand",
-      args: [char],
+      when: "emacs-mcx.inRegisterCopyMode && editorTextFocus",
+      command: "emacs-mcx.copyToRegister",
+      args: char,
     });
   }
 
   for (const char of asciiPrintableChars) {
     keybindings.push({
       key: char,
       when: "emacs-mcx.inRegisterInsertMode && editorTextFocus",
-      command: "emacs-mcx.RegisterInsertCommand",
-      args: [char],
+      command: "emacs-mcx.insertRegister",
+      args: char,
     });
   }
   return keybindings;

keybindings.json

@@ -758,12 +758,12 @@
     },
     {
       "key": "s", // ctrl+x r s
-      "command": "emacs-mcx.StartRegisterSaveCommand",
+      "command": "emacs-mcx.startRegisterCopyCommand",
       "when": "emacs-mcx.acceptingRectCommand && editorTextFocus"
     },
     {
       "key": "i", // ctrl+x r i
-      "command": "emacs-mcx.StartRegisterInsertCommand",
+      "command": "emacs-mcx.startRegisterInsertCommand",
       "when": "emacs-mcx.acceptingRectCommand && editorTextFocus"
     },
     {