Navigate with Fn+Arrows for scrolling without Cursor Movement

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To match Apple's suggested behavior on MacOS and how other text editors are using the Fn+Arrow Keys as shortcuts:

• Fn+Down arrow should scroll down in the document without moving the cursor, but Obsidian moves the cursor. (Same thing for Fn+Up)
• Compare with another MacOS Document editor (I tested with iA Writer and TextEdit), which should scroll down one page without moving the cursor
• Reference the Mac Keyboard Shortcuts list, specifically under “Document Shortcuts”

Fn-Up Arrow: Page Up: Scroll up one page.
Fn-Down Arrow: Page Down: Scroll down one page.

Similar Issue for Fn+Left/Right

• Fn+Right arrow should scroll to the end the document without moving the cursor, but it only goes to the end of the line, and moves the cursor. (Same thing for Fn+Left)

Fn-Left Arrow: Home: Scroll to the beginning of a document.
Fn-Right Arrow: End: Scroll to the end of a document.