Implement minWidth property + refactor default property of new containers and main container (#34)

Co-authored-by: Eric NGUYEN <enguyen@techform.fr>
Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/34

src/Components/Properties/DynamicForm.tsx

@@ -70,12 +70,23 @@ const DynamicForm: React.FunctionComponent<IDynamicFormProps> = (props) => {
         value={props.properties.y.toString()}
         onChange={(event) => props.onChange('y', Number(event.target.value))}
       />
+      <InputGroup
+        labelText='Minimum width'
+        inputKey='minWidth'
+        labelClassName=''
+        inputClassName=''
+        type='number'
+        min={1}
+        value={props.properties.minWidth.toString()}
+        onChange={(event) => props.onChange('minWidth', Number(event.target.value))}
+      />
       <InputGroup
         labelText='Width'
         inputKey='width'
         labelClassName=''
         inputClassName=''
         type='number'
+        min={props.properties.minWidth}
         value={props.properties.width.toString()}
         onChange={(event) => props.onChange('width', Number(event.target.value))}
       />
@@ -85,6 +96,7 @@ const DynamicForm: React.FunctionComponent<IDynamicFormProps> = (props) => {
         labelClassName=''
         inputClassName=''
         type='number'
+        min={0}
         value={props.properties.height.toString()}
         onChange={(event) => props.onChange('height', Number(event.target.value))}
       />