refactor(thumbnail): [PKG-TOOL-THUMB-04] preserve approved published defaults

docs/compiled/artplayer-tool-thumbnail.js

@@ -31,4 +31,4 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
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+!function(e,t){"object"===typeof exports&&"undefined"!==typeof module?module.exports=t():"function"==typeof define&&define.amd?(e.ArtplayerToolThumbnail=t(),define(function(){return e.ArtplayerToolThumbnail})):(e="undefined"!==typeof globalThis?globalThis:e||self).ArtplayerToolThumbnail=t()}(this,function(){"use strict";const e=(e,t)=>Object.prototype.hasOwnProperty.call(e,t);class t{on(t,o,n){const r=this.e||(this.e={});let i=e(r,t)?r[t]:void 0;return i||(i=[],Object.defineProperty(r,t,{value:i,enumerable:!0,configurable:!0,writable:!0})),i.push({fn:o,ctx:n}),this}once(e,t,o){const n=this,r=t;let i=!1;function s(...t){i||(i=!0,n.off(e,s),r.apply(o,t))}return s._=t,this.on(e,s,o)}emit(t,...o){const n=this.e||(this.e={}),r=(e(n,t)&&n[t]||[]).slice();for(let e=0;e<r.length;e+=1)r[e].fn.apply(r[e].ctx,o);return this}off(t,o){const n=this.e||(this.e={}),r=e(n,t)?n[t]:void 0,i=[];if(r&&o)for(let e=0,s=r.length;e<s;e+=1)r[e].fn!==o&&r[e].fn._!==o&&i.push(r[e]);return i.length?n[t]=i:delete 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