Dashboard rework

This page will serve as a punchlist of things to accomplish for the View Assist dashboard rewrite:

• Set button card variables to use try/else for setting default values. This may prevent errors on load and misconfigured devices
• Remove variables like title, font size, view timeout (?) etc from VA config in favor of dynamically setting
• Base dashboard variable improvement. I would like to remove the weather, title, font, clock, date and top bar status icons from the base. These can be used where needed within the views. These will be defined in wiki for those writing views and want to include them.
• Support for landscape and portrait modes. These will be separate dashboards. Combining will be too difficult
• Top bar status icons will be defined in a new custom button template. These will define the icon to use and the different actions. Two new variables will be introduced to VA config. One for persistent icons (quick launch) and one for status icon (like current). VA will manage when these are shown as usual by adding/removing from the status icon list. Use layout card for dynamically showing
• Top bar icons will be defined in button template definition
• Allow for setting icon colors (light or dark)
• Restructure the view page so that icon changes do not shift the message area content (Use Flex??)
• Add new Assist listening as default but keep current Assist bar as option
• Change background/background color to be dynamically set and allow for user to set default per device
• Change font to one similar to what HA uses to brand closer with HA
• Consider allowing for displaying vector or raster with transparent backgrounds on top of backgrounds to reuse same background but have more unique look. Example: show car for driving times, question mark for AI/Wikipedia, etc