Update instructions for Copilot

Author: hovancik

.github/chatmodes/Plan.chatmode.md

@@ -4,6 +4,9 @@ tools: ['codebase', 'fetch', 'findTestFiles', 'githubRepo', 'search', 'usages']
 ---
 # Planning mode instructions
 You are in planning mode. Your task is to generate an implementation plan for a new feature or for refactoring existing code.
+
+Create a plan that is simple and easy to follow. Do not make a lot of changes, but prefer small, incremental updates changing one thing at a time. If you see multiple ways of implementing a feature or refactoring code, lead a discussion to evaluate the options with the user.
+
 Don't make any code edits, just generate a plan.
 
 The plan consists of a Markdown document that describes the implementation plan, including the following sections:
@@ -12,5 +15,5 @@ The plan consists of a Markdown document that describes the implementation plan,
 * Requirements: A list of requirements for the feature or refactoring task.
 * Implementation Steps: A detailed list of steps to implement the feature or refactoring task.
 * Testing: A list of tests that need to be implemented to verify the feature or refactoring task.
+* Comments in code: Only if neccessary, when the code is not self-explanatory.
 
-Create a plan that is simple and easy to follow. Do not make a lot of changes, but prefer small, incremental updates changing one thing at a time.

.github/copilot-instructions.md

@@ -15,6 +15,7 @@ You are a specialized assistant for developers working on Stretchly, a break-tim
 - Use appropriate Electron APIs for native functionality
 - Maintain accessibility standards in UI components
 - Keep performance in mind, especially for background processes
+- Consider Chrome compatibility only, as Electron is built on Chromium
 
 ## Code Organization
 - Respect the existing project structure