Dock Improvements

### Feature Description

1. Add Dock Apps Isolation. (Per Workspace)
2. App Menu, Pinned Apps, Running Apps Should Be Able To Add Border Separately As Well.
3. Right Clicking Apps Menu Should Have Icons.
4. App Launcher Should Open Near BTN & Should Match App Launcher Form Dank Bar's Launcher (No Border Even When Border Is Applied.
5. Right Clicking Again The Icon Should Unhide The Menu Right Click Actions.
6. Ability To Hide Certain Apps From Doc Permanently.

### Use Case

Better UI / UX

### Compositor(s)

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

### Proposed Solution

1. Similar To Dankbar's Dock Widget.
2. Similar To Dankbar's Launcher Widget.
3. Similar To How It Works In Launcher.
4. Similar To Dankbar's Launcher Widget.
5. Unhide The Menu.
6. Hide BTN Similar To How Its Inside The Launcher.

### Alternatives/Existing Solutions

1. Similar To Dankbar's Dock Widget.
2. Similar To Dankbar's Launcher Widget.
3. Similar To How It Works In Launcher.
4. Similar To Dankbar's Launcher Widget.
5. Unhide The Menu.
6. Hide BTN Similar To How Its Inside The Launcher.

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--------------------------------- Checklist ----------------------------------
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- [ ] Add Dock Apps Isolation. (Per Workspace)
- [ ] App Menu, Pinned Apps, Running Apps Should Be Able To Add Border Separately As Well.
- [x] Right Clicking Apps Menu Should Have Icons.
- [ ] App Launcher Should Open Near BTN & Should Match App Launcher Form Dank Bar's Launcher (No Border Even When Border Is Applied.
- [ ] Right Clicking Again The Icon Should Unhide The Menu Right Click Actions.
- [ ] Ability To Hide Certain Apps From Doc Permanently.

The issue defines six dock and launcher behaviors and marks only right-click menu icons complete; no files, tests, or entry points are named. Start by locating the existing dock and launcher implementations, then break the remaining checklist into separately verifiable changes covering workspace isolation, borders, positioning, context-menu behavior, and app hiding.

Written by the indexing model from the issue text.