group each plugin in its own folder

src/editor/extensions/ext-panning/ext-panning.js

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+/**
+ * @file ext-panning.js
+ *
+ * @license MIT
+ *
+ * @copyright 2013 Luis Aguirre
+ *
+ */
+/*
+  This is a very basic SVG-Edit extension to let tablet/mobile devices pan without problem
+*/
+
+export default {
+  name: 'panning',
+  async init ({importLocale}) {
+    const svgEditor = this;
+    // eslint-disable-next-line node/no-unsupported-features/es-syntax
+    const {default: strings} = await import(`./locale/${svgEditor.curPrefs.lang}.js`);
+    const svgCanvas = svgEditor.canvas;
+    const buttons = [{
+      id: 'ext-panning',
+      icon: 'panning.png',
+      type: 'mode',
+      events: {
+        click () {
+          svgCanvas.setMode('ext-panning');
+        }
+      }
+    }];
+    return {
+      name: strings.name,
+      svgicons: 'ext-panning.xml',
+      buttons: strings.buttons.map((button, i) => {
+        return Object.assign(buttons[i], button);
+      }),
+      mouseDown () {
+        if (svgCanvas.getMode() === 'ext-panning') {
+          svgEditor.setPanning(true);
+          return {started: true};
+        }
+        return undefined;
+      },
+      mouseUp () {
+        if (svgCanvas.getMode() === 'ext-panning') {
+          svgEditor.setPanning(false);
+          return {
+            keep: false,
+            element: null
+          };
+        }
+        return undefined;
+      }
+    };
+  }
+};

src/editor/extensions/ext-panning/locale/en.js

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+export default {
+  name: 'Extension Panning',
+  buttons: [
+    {
+      title: 'Panning'
+    }
+  ]
+};

src/editor/extensions/ext-panning/locale/zh-CN.js

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+export default {
+  name: '移动',
+  buttons: [
+    {
+      title: '移动'
+    }
+  ]
+};