Allow using "this" to refer to current token with empty selection (#1094)

- Fixes #1043
- Fixes #1141 
- Depends on #1187

## Checklist

- [x] I have added
[tests](https://www.cursorless.org/docs/contributing/test-case-recorder/)
- [x] I have updated the
[docs](https://github.com/cursorless-dev/cursorless/tree/main/docs) and
[cheatsheet](https://github.com/cursorless-dev/cursorless/tree/main/cursorless-talon/src/cheatsheet)

Co-authored-by: Pokey Rule <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 3 people

src/command.py

@@ -12,6 +12,7 @@
 mod = Module()
 
 CURSORLESS_COMMAND_ID = "cursorless.command"
+CURSORLESS_COMMAND_VERSION = 4
 last_phrase = None
 
 
@@ -136,7 +137,7 @@ def construct_cursorless_command_argument(
         use_pre_phrase_snapshot = False
 
     return {
-        "version": 3,
+        "version": CURSORLESS_COMMAND_VERSION,
         "spokenForm": get_spoken_form(),
         "action": {
             "name": action,

src/compound_targets.py

@@ -3,7 +3,7 @@
 from talon import Module
 
 from .connective import default_range_connective
-from .primitive_target import BASE_TARGET
+from .primitive_target import IMPLICIT_TARGET
 
 mod = Module()
 
@@ -46,7 +46,7 @@ def cursorless_range(m) -> dict[str, Any]:
         return primitive_targets[0]
 
     if len(primitive_targets) == 1:
-        anchor = BASE_TARGET.copy()
+        anchor = IMPLICIT_TARGET.copy()
     else:
         anchor = primitive_targets[0]
 

src/primitive_target.py

@@ -6,7 +6,7 @@
 mod = Module()
 
 BASE_TARGET: dict[str, Any] = {"type": "primitive"}
-IMPLICIT_TARGET = {"type": "primitive", "isImplicit": True}
+IMPLICIT_TARGET = {"type": "implicit"}
 
 
 @mod.capture(