This PR closes #470. I chose the following approach:

• Removed all hardcoded width and height attributes from .svg files to make them resizable as intended.
• Added --uix CSS variable with default value of 1.0 and going in steps up to 2.0 for 4k displays.
• Added custom --px-X CSS variables scaling up hard coded pixel values with --uix.
• Added tailwindcss overrides for spacing and borderWidth using these CSS --px-X variables.
• Changed the size of Page Selector.
• Changed the size of Settings, Close, and Back buttons.
• Changed the size of drill down right arrow button.
• Changed the size of RadioButton and ToggleSwitch.

Here are the remaining things I would like to address:

• Verify various other elements for their px hard coded sizes.