add support to save color setings and style settings

[Fabio-Stuber]

save settings in the localstorage for eatch person.

[MichaHuhn]

VueUse has a useful localStorage composable: https://vueuse.org/core/useStorage

[MelanX]

Just wanted to create a new issue for exactly that. Here's what I wrote and just wanted to post after checking issues for related issues:

Idea

I suggest a button called "Save Preset" that opens a small dialog where you can enter a name for that preset. The current icon settings that you would also have in a permalink or stored in the exported PNG would then be stored in the browsers storage. You'd also have a button "Presets" that shows a list of your stored presets (maybe even with a small icon that shows the presets result) and by clicking it, these settings would be applied.

Why?

I like to have different colors and different styles for different use cases. Examples:

• Coding: Pink
• Video editing: Blue
• My job as moderator on Twitch at Skate702: Orange

It would be pretty nice to have those things set as presets instead of trying to find the correct hue start color and other settings.

Alternative

We could also just wait for #174 and have a stream deck page full of "Open URL" using the permalinks but this isn't convenient.