removed gs-min|max_w|h attribute

* fix gridstack#2243
* removed `gs-min|max_w|h` attribute  generated in CSS or written out as they are never used for rendering, only for initial load. This reduce our column/row styles in half!

README.md

@@ -257,8 +257,6 @@ Better yet, here is a SASS code snippet which can make life much easier (Thanks
   @for $i from 0 through $gridstack-columns {
     &[gs-w='#{$i}'] { width: (100% / $gridstack-columns) * $i; }
     &[gs-x='#{$i}'] { left: (100% / $gridstack-columns) * $i; }
-    &[gs-min-w='#{$i}'] { min-width: (100% / $gridstack-columns) * $i; }
-    &[gs-max-w='#{$i}'] { max-width: (100% / $gridstack-columns) * $i; }
   }
 } 
 ```

doc/CHANGES.md

@@ -5,6 +5,7 @@ Change log
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
 **Table of Contents**  *generated with [DocToc](http://doctoc.herokuapp.com/)*
 
+- [7.3.0-dev (TBD)](#730-dev-tbd)
 - [7.3.0 (2023-04-01)](#730-2023-04-01)
 - [7.2.3 (2023-02-02)](#723-2023-02-02)
 - [7.2.2 (2023-01-16)](#722-2023-01-16)
@@ -82,6 +83,9 @@ Change log
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
+## 7.3.0-dev (TBD)
+* feat [#2243](https://github.com/gridstack/gridstack.js/issues/2243) removed `gs-min|max_w|h` attribute generated in CSS or written out as they are never used for rendering, only for initial load. This reduce our column/row styles in half!
+
 ## 7.3.0 (2023-04-01)
 * feat [#2229](https://github.com/gridstack/gridstack.js/pull/2229) support nonce for CSP. Thank you [@jedwards1211](https://github.com/jedwards1211)
 * feat: support nested grids with Angular component demo. Thank you R. Blanken for supporting this.

doc/README.md

@@ -51,7 +51,7 @@ gridstack.js API
   - [`isAreaEmpty(x, y, width, height)`](#isareaemptyx-y-width-height)
   - [`load(layout: GridStackWidget[], boolean | ((w: GridStackWidget, add: boolean) => void)  = true)`](#loadlayout-gridstackwidget-boolean--w-gridstackwidget-add-boolean--void---true)
   - [`makeWidget(el)`](#makewidgetel)
-  - [`makeSubGrid(el)`](#makeSubGrid)
+  - [`makeSubgrid(el)`](#makesubgridel)
   - [`margin(value: numberOrString)`](#marginvalue-numberorstring)
   - [`movable(el, val)`](#movableel-val)
   - [`removeWidget(el, removeDOM = true, triggerEvent = true)`](#removewidgetel-removedom--true-triggerevent--true)