Add default values to styles

[veredcon]

In the original webview toolkit there were default styles configured in case no VSCode variable is present. for example in case of color This helps in local development when there are no VSCode variables available.. otherwise styles look bad

e.g: button in local development:

button as part of vscode weview:

[bendera]

That's a valid point. Until I add them, you can use these css variables during the development: https://github.com/vscode-elements/elements/blob/main/dev-assets/dark-v2.txt This is the default theme called "Dark Modern".

[bendera]

Look at this: https://github.com/vscode-elements/webview-playground