Html specs corrections 5

[TeyaVes]

targets: https://github.com/telerik/kendo-themes-private/issues/246

This PR targets the following items from the related issue:

Toolbar

• [x] see if Angular-specific toolbar specs/templates can be removed.

Map

• [x] k-button-square is missing on navigator buttons It seems that the class is obsolete - can we remove it?

Expansion panel / Expander

• [x] should use k-hidden instead of k-d-none when not expanded

Switch

• [x] add offLabel and onLabel in the switch templates

TabStrip

• [x] check if we can remove k-header class Removed from the spec as the class seems to be obsolete
• [x] we should use k-tabstrip-item instead of k-item Both classes would be present for now as the styles in the themes are attached to k-item class and some in some suites only the k-item class is present, thus replacing it would impose a breaking change
• [x] check if we can remove k-tab-on-top class as mentioned here -  Unify rendering for ColumnMenu Removed from the spec as the class seems to be obsolete

CheckBox

• [x] should checked CheckBoxes have k-checked class both the class k-checked and the state :checked hold the styles. However, we should keep the class for consistency - we are adding state classes for buttons, inputs, etc- k-hover, k-focus, etc. So following the same logic, we should add k-check to the checked checkox as well .
• [x] add a template with checked CheckBoxes

ImageEditor

• [x] The form label "Lock aspect ratio:" should become a label of the checkbox, following the design guidelines.

DateTimePicker, others

• [x] add missing k-time-accept, k-time-cancel to adaptive buttons
• [x] check if we can replace k-calendar-container and k-list-container with k-datetime-container - ref

[inikolova]

Most of the things look OK :) A small adjustment is needed in the ImageEditor - there is width 241px set to .k-imageeditor-action-pane - this width should be increased, as in the Material and Fluent themes there is a horizontal scrollbar.

[TeyaVes]

As discussed at the FE & Design sync, I'll fix the width of the ImageEditor Pane for now and apply any further changes once the design has been revised. However, I'll do so in a separate PR for a better clarity: https://github.com/telerik/kendo-themes/pull/5238

[TeyaVes]

Looks okay overall, I am just wondering about two things:

1. If we are removing the k-tab-on-top class, shouldn't we remove it from spreadsheet-jquery.tsx as well? And if it is an obsolete class should't we delete it?
2. Are we okay with the difference in the ImageEditor label font weight in Fluent? I know that this is the correct checkbox position, but still.

1. I've removed the k-tab-on-top class from the styles and the specs.

2. I think that we should leave the checkbox with label with the normal font weight in Fluent - following the logic only the formfield labels are bold.