(core) Improving experience when editing group-by column.

Summary:
Improving experience when editing group-by column:
- Disable column rename
- Allow changing most widget properties:
 - Color/Background
 - Number format
 - Date/DateTime format (but not the timezone)
 - All toggle options (for toggle column)
- Remove Edit button on Choice Edit
- Changing the underlying column should reset all those options back to the original column.

Test Plan: nbrowser

Reviewers: alexmojaki

Reviewed By: alexmojaki

Subscribers: alexmojaki

Differential Revision: https://phab.getgrist.com/D3216

app/client/widgets/ChoiceTextBox.ts

@@ -5,7 +5,7 @@ import {KoSaveableObservable} from 'app/client/models/modelUtil';
 import {cssLabel, cssRow} from 'app/client/ui/RightPanel';
 import {testId} from 'app/client/ui2018/cssVars';
 import {NTextBox} from 'app/client/widgets/NTextBox';
-import {Computed, dom, styled} from 'grainjs';
+import {Computed, dom, fromKo, styled} from 'grainjs';
 import {choiceToken, DEFAULT_FILL_COLOR, DEFAULT_TEXT_COLOR} from 'app/client/widgets/ChoiceToken';
 
 export interface IChoiceOptions {
@@ -73,7 +73,8 @@ export class ChoiceTextBox extends NTextBox {
           ChoiceListEntry,
           this._choiceValues,
           this._choiceOptionsByName,
-          this.save.bind(this)
+          this.save.bind(this),
+          fromKo(this.field.column().disableEditData)
         )
       )
     ];