Fix upload pull requests

[AlexImb]

Fix various linting issues to improve code quality and maintainability.

[Copilot]

Pull Request Overview

This PR addresses various linting issues and code quality improvements across the codebase.

• Replaced let and explicit type annotations with const or inferred types where appropriate
• Simplified regex character classes, updated example URLs and SVG icons in service classes
• Enhanced property definitions with JSDoc, improved hasOwnProperty checks, and cleaned up utility functions

Reviewed Changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/services/local.test.ts	Switched let → const in tests
src/uppload.ts	Replaced let with const for firstService
src/services/microlink/weheartit.ts	Updated icon, color, exampleURL, and regex syntax
src/services/microlink/twitter.ts	Updated icon, exampleURL, and regex syntax
src/services/microlink/tumblr.ts	Updated icon, color, exampleURL, and regex syntax
src/services/microlink/reddit.ts	Updated icon, color, exampleURL, and regex syntax
src/services/microlink/pinterest.ts	Updated icon, color, exampleURL, and regex syntax
src/services/microlink/linkedin.ts	Updated icon, color, exampleURL, and regex syntax
src/services/microlink/instagram.ts	Simplified regex syntax
src/services/microlink/fotki.ts	Simplified regex syntax
src/services/microlink/flipboard.ts	Simplified regex syntax
src/services/microlink/flickr.ts	Simplified regex syntax
src/services/microlink/facebook.ts	Simplified regex syntax
src/services/microlink/deviantart.ts	Simplified regex syntax
src/services/microlink/artstation.ts	Simplified regex syntax
src/services/microlink/9gag.ts	Simplified regex syntax
src/services/local.ts	Removed redundant type annotation for maxFileSize
src/service.ts	Added JSDoc to base methods and removed explicit type syntax
src/i18n/fa.ts	Fixed indentation of a long string literal
src/helpers/utils.ts	Removed explicit type annotations for default parameters
src/helpers/i18n.ts	Replaced hasOwnProperty calls with safer Object.prototype
src/effects/flip/index.ts	Replaced let with const for file
src/effect.ts	Added JSDoc to base handler and removed explicit type syntax

Comments suppressed due to low confidence (3)

src/services/microlink/weheartit.ts:9

• The updated regex for validator should have accompanying unit tests to ensure URLs still validate correctly, especially after syntax simplification.

    /(https?:\/\/(.+?\.)?weheartit\.com(\/[A-Za-z0-9\-._~:/?#[\]@!$&'()*+,;=]*)?)/.test(

tests/services/local.test.ts:39

• Using const file = null prevents reassignment, but the test expects file to be set by service.dropHandler. Consider reverting to let or refactoring the handler to return the file instead of mutating this variable.

  const file = null;

tests/services/local.test.ts:45

• Similarly here, const file = null cannot be updated by service.getFile, so expect(file).toBeDefined() will always fail. Use let or change the API to return the file.

  const file = null;