Dank Dash update

### Feature Description

i was wondering if dank dash is gonna be able to be customized and extended with plugins in the later updates , in my case i want to take a peek at my ram usage and temps without having to add it to my dankbar , i also would like to change the size of each little widget in the dank dash

### Use Case

_No response_

### Compositor(s)

- [x] All compositors
- [ ] Niri
- [ ] Hyprland
- [ ] MangoWC (dwl)
- [ ] Sway
- [ ] Other (specify below)

### Proposed Solution

_No response_

### Alternatives/Existing Solutions

_No response_

The issue names no files, tests, or entry points to investigate. Clarify whether the scope is plugin support, RAM and temperature widgets, widget sizing, or all three, then define acceptance criteria before implementation.

Written by the indexing model from the issue text.