project restructuring and initial refactoring

common/utils/app-version.ts

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+import { app, remote } from "electron"
+
+/**
+ *
+ * @returns app version correctly regardless of dev/prod mode and main/renderer differences
+ */
+export function getAppVersion(): string {
+  return (app || remote.app).getVersion();
+}

common/utils/base64.ts

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+// Encode/decode utf-8 base64 string
+import * as Base64 from "crypto-js/enc-base64";
+import * as Utf8 from "crypto-js/enc-utf8";
+
+export const base64 = {
+  decode(data: string) {
+    return Base64.parse(data).toString(Utf8);
+  },
+  encode(data: string) {
+    return Utf8.parse(data).toString(Base64);
+  }
+};

common/utils/camelCase.ts

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+// Convert object's keys to camelCase format
+import { camelCase, isPlainObject } from "lodash";
+
+export function toCamelCase(obj: Record<string, any>): any {
+  if (Array.isArray(obj)) {
+    return obj.map(toCamelCase);
+  }
+  else if (isPlainObject(obj)) {
+    return Object.keys(obj).reduce((result, key) => {
+      const value = obj[key];
+      result[camelCase(key)] = typeof value === "object" ? toCamelCase(value) : value;
+      return result;
+    }, {} as any);
+  }
+  else {
+    return obj;
+  }
+}

common/utils/index.ts

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+// Common utils bundle
+
+export * from "./app-version"
+export * from "./base64"
+export * from "./camelCase"