add types to most common tkinter.Entry methods (#5586)

* most common tkinter.Entry methods

* type-ignore tkinter's lsp violation

Author: Akuli

stdlib/tkinter/__init__.pyi

@@ -1421,6 +1421,8 @@ class Checkbutton(Widget):
     def select(self): ...
     def toggle(self): ...
 
+_EntryIndex = Union[str, int]  # "INDICES" in manual page
+
 class Entry(Widget, XView):
     def __init__(
         self,
@@ -1512,25 +1514,25 @@ class Entry(Widget, XView):
     @overload
     def configure(self, cnf: str) -> Tuple[str, str, str, Any, Any]: ...
     config = configure
-    def delete(self, first, last: Optional[Any] = ...): ...
-    def get(self): ...
-    def icursor(self, index): ...
-    def index(self, index): ...
-    def insert(self, index, string): ...
+    def delete(self, first: _EntryIndex, last: _EntryIndex | None = ...) -> None: ...
+    def get(self) -> str: ...
+    def icursor(self, index: _EntryIndex) -> None: ...
+    def index(self, index: _EntryIndex) -> int: ...
+    def insert(self, index: _EntryIndex, string: str) -> None: ...
     def scan_mark(self, x): ...
     def scan_dragto(self, x): ...
-    def selection_adjust(self, index): ...
-    select_adjust: Any
-    def selection_clear(self): ...
-    select_clear: Any
-    def selection_from(self, index): ...
-    select_from: Any
-    def selection_present(self): ...
-    select_present: Any
-    def selection_range(self, start, end): ...
-    select_range: Any
-    def selection_to(self, index): ...
-    select_to: Any
+    def selection_adjust(self, index: _EntryIndex) -> None: ...
+    def selection_clear(self) -> None: ...  # type: ignore
+    def selection_from(self, index: _EntryIndex) -> None: ...
+    def selection_present(self) -> bool: ...
+    def selection_range(self, start: _EntryIndex, end: _EntryIndex) -> None: ...
+    def selection_to(self, index: _EntryIndex) -> None: ...
+    select_adjust = selection_adjust
+    select_clear = selection_clear
+    select_from = selection_from
+    select_present = selection_present
+    select_range = selection_range
+    select_to = selection_to
 
 class Frame(Widget):
     def __init__(