Make calculation of height and width inverse, that is, the way it is convenient for me
Disable `calculator_button` in css
Use flex(dynamic) width for all buttons
Add resolution presets by formula: `f(x) = 512 + (1024-512)/4*x, 0 <= x <= 4 `
Add ratios presets
Add button titles on UI load. Use comments in aspect_ratios.txt and resolutions.txt to for user configured buttons, and hard-coded titles in sd-webui-ar.js for built-in buttons (i.e. for calculator).
Simplified ratio calculation, swapped calculator button icon for text to ensure browser compatibility, updated button styles, simplified self.image declaration.
