(core) Implementing row conditional formatting

Summary:
Conditional formatting can now be used for whole rows.
Related fix:
- Font styles weren't applicable for summary columns.
- Checkbox and slider weren't using colors properly

Test Plan: Existing and new tests

Reviewers: paulfitz, georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3547

app/client/widgets/DateTextBox.js

@@ -8,7 +8,7 @@ var AbstractWidget = require('./AbstractWidget');
 
 const {fromKoSave} = require('app/client/lib/fromKoSave');
 const {alignmentSelect} = require('app/client/ui2018/buttonSelect');
-const {cssRow, cssLabel} = require('app/client/ui/RightPanel');
+const {cssRow, cssLabel} = require('app/client/ui/RightPanelStyles');
 const {cssTextInput} = require("app/client/ui2018/editableLabel");
 const {styled, fromKo} = require('grainjs');
 const {select} = require('app/client/ui2018/menus');