theme: soften the YoRHa shapes; SUPER+D opens the dashboard

The square markers, block meters and hard-cornered fills read as boxy
next to the porthole. The desktop is now soft throughout: the porthole
is the shape everything is built around and every smaller surface echoes
it.

- Theme gains radiusS / radiusM / radiusL. radiusL is frameRadius - padS,
  so anything inset padS inside one of the frame's curves is concentric
  with it.
- P5Panel and Skew draw rounded rectangles (Geom.roundedRect) whenever
  they neither lean nor are chopped, which is always now; the polygon
  path is kept for shapes brought back on purpose.
- Markers are dots; workspace pips, toggles, transport and media chips,
  notification actions and today's date are pills or discs; the slider
  handle is round. Meters are one continuous rounded line that glides to
  its level instead of a row of segments.
- Album art is rounded with ClippingRectangle in the bar, the media
  popout and the dashboard.
- Free-standing panels (launcher, ask) drop the corner brackets and take
  the frame radius.
- Fix: a hovered notification's wash was a full-bleed square, so in the
  drawer's bottom corner it ran past the drawer's curve. It is inset by
  padS/2 and rounded by radiusL, which keeps it inside the curve.

Hyprland: the discord special workspace and its window rule are gone,
SUPER+S stays the only scratchpad, and SUPER+D now opens the dashboard
(it was on SUPER+I).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

quickshell/components/P5Panel.qml

@@ -5,9 +5,8 @@ import "root:/config"
 import "root:/components"
 
 // The base surface for everything in this shell. Under the YoRHa theme it is a
-// plain rectangle with a hairline border, an optional dot wash, an optional
-// accent bar down its leading edge, and optional corner ticks — the brackets
-// NieR frames its panels with.
+// rounded rectangle with a hairline border, an optional dot wash, an optional
+// accent bar down its leading edge, and optional corner ticks.
 //
 // The lean and chop knobs still exist and still work, so a caller can bring a
 // shape back on purpose, but Theme.skew and Theme.cut are both zero.
@@ -34,6 +33,10 @@ Item {
     property real chop: Theme.cut
     property var chopCorners: [1, 3]
 
+    // Corner radius. Used whenever the panel neither leans nor is chopped,
+    // which under the YoRHa theme is always.
+    property real radius: Theme.radiusM
+
     // Accent bar down the leading edge.
     property bool slash: false
     property color slashColor: Theme.accent
@@ -67,6 +70,11 @@ Item {
     readonly property real leanInset:
         (vertical ? width : height) * Math.abs(lean)
 
+    // The outline every layer below is drawn from.
+    readonly property string outline: root.lean === 0 && root.chop <= 0
+        ? Geom.roundedRect(root.width, root.height, root.radius)
+        : Geom.svg(Geom.chamfer(root.polygon, root.chop, root.chopCorners).slice(0, -1))
+
     readonly property var polygon: vertical
         ? (leanLeft ? Geom.parallelogramVL(width, height, lean)
                     : Geom.parallelogramV(width, height, lean))
@@ -99,8 +107,8 @@ Item {
             strokeColor: "transparent"
             joinStyle: ShapePath.MiterJoin
 
-            PathPolyline {
-                path: Geom.chamfer(root.polygon, root.chop, root.chopCorners)
+            PathSvg {
+                path: root.outline
             }
         }
     }
@@ -123,8 +131,8 @@ Item {
                 strokeColor: "transparent"
                 joinStyle: ShapePath.MiterJoin
 
-                PathPolyline {
-                    path: Geom.chamfer(root.polygon, root.chop, root.chopCorners)
+                PathSvg {
+                    path: root.outline
                 }
             }
         }
@@ -148,8 +156,8 @@ Item {
             joinStyle: ShapePath.MiterJoin
             capStyle: ShapePath.FlatCap
 
-            PathPolyline {
-                path: Geom.chamfer(root.polygon, root.chop, root.chopCorners)
+            PathSvg {
+                path: root.outline
             }
         }
 
@@ -161,8 +169,8 @@ Item {
             joinStyle: ShapePath.MiterJoin
             capStyle: ShapePath.FlatCap
 
-            PathPolyline {
-                path: Geom.chamfer(root.polygon, root.chop, root.chopCorners)
+            PathSvg {
+                path: root.outline
             }
         }
     }