Menu items overhaul

[yougotwill]

Description

This pr initially started as adding Clone Note to the menu bar and having a keyboard shortcut for it. However once I got started I thought that the menu items needed some restructuring and some of the keyboard shortcuts needed to be more platform friendly (i.e. using Command on macOS vs Control on Windows\Linux). Some of the keyboard shortcut changes are listed below.

Changed shortcuts

Focus Note: On macOS its now Command+E otherwise it remains Ctrl+E
Clone Note: On macOS its Command+D otherwise it is Ctrl+D

I made an attempt on bringing back the Delete key for non macOS machines but you can't have multiple accelerators on the same menuItem and I was too lazy to code it elsewhere 🤷‍♂️ I have also removed the Ctrl+D shortcut for deleting a note since the global shortcut is different as of this pr #2452 and I needed it for Clone Note 😄

I also noticed from this issue #2245 that the keyboard shortcuts wiki is seriously outdated. I can't update the wiki sadly but I hope that someone with power can do so after this PR is merged in to prevent any future confusion :)

What the menu items will now look like

Clone Note proof

NOTE: I have not tested on either Linux or Windows can someone please test before merging. 🙏

Issue fixed

Type of changes

• 🔘 Bug fix (Change that fixed an issue)
• 🔘 Breaking change (Change that can cause existing functionality to change)
• ⚪ Improvement (Change that improves the code. Maybe performance or development improvement)
• 🔘 Feature (Change that adds new functionality)
• 🔘 Documentation change (Change that modifies documentation. Maybe typo fixes)

Checklist:

• 🔘 My code follows the project code style
• 🔘 I have written test for my code and it has been tested
• 🔘 All existing tests have been passed
• 🔘 I have attached a screenshot/video to visualize my change if possible

[ZeroX-DG]

LGTM but we gonna need someone with more high power to review this issue 😄 @Rokt33r

[Rokt33r]

LGTM!