theme: strip the remaining Persona punch from Hyprland and the popouts

Hyprland:
- Windows round at 8px, concentric with the porthole's 18px corners at
  the 10px gap, instead of square corners inside a rounded opening.
- Group tabs are solid hull slabs; the titles used to float over the
  wallpaper. The current tab is lifted a step with its title in the light.
- Motion rewritten to glide and settle: no overshoot curve, gentler
  popin, workspaces slide-fade a short way instead of sweeping the whole
  screen, and layers only fade so they never stack on quickshell's own
  slides.

Quickshell:
- Album art in the bar and the media popout is square in a hairline frame,
  not masked to a leaning chamfered shape; the accent slab under the
  popout art is gone, and a track change dips the title instead of
  tilting the art.
- The bar's equaliser is a five-hairline signal meter that rests as dots.
- Segment meters (system, battery, OSD) are 4px rows instead of 10-12px
  blocks; the toast fuse is a hairline; the clock's accent slab is a
  neutral divider.
- No hover pops: rail icons, tray icons, media transport buttons and
  P5Button no longer scale up or lunge sideways; the icon bump is reduced.

Terminal: ANSI bright black drops to #464d44. TUIs use it as a panel fill,
and at the outline grey it read as a flat light slab.

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

quickshell/overlays/Osd.qml

@@ -171,8 +171,8 @@ PanelWindow {
                     anchors.verticalCenter: parent.verticalCenter
                     // Natural width, not a fixed one — SplitText offsets its
                     // ghosts with left/right anchor margins, so pinning the
-                    // width and right-aligning the text would flatten the RGB
-                    // split away. The title's left edge is anchored, so a
+                    // width and right-aligning the text would flatten the
+                    // glitch flicker away. The title's left edge is anchored, so a
                     // widening readout only moves its own left edge.
                     text: Math.round(root.level * 100) + "%"
                     pixelSize: Theme.fsBody
@@ -181,10 +181,10 @@ PanelWindow {
 
             MeterBar {
                 width: parent.width
-                height: 10
+                height: 4
                 segments: 20
-                segmentWidth: (width - 19 * 3) / 20
-                spacing: 3
+                segmentWidth: (width - 19 * 2) / 20
+                spacing: 2
                 value: root.level * 100
                 activeColor: root.tone
             }

quickshell/overlays/PowerMenu.qml

@@ -179,7 +179,6 @@ PanelWindow {
                     selected: root.selectedAction === entry.index
                     accent: entry.modelData.danger ? Theme.alarm : Theme.primary
                     lean: Theme.skew
-                    lunge: -10
                     onClicked: root.invoke(entry.modelData.act)
                     onHoveredChanged: if (hovered) root.selectedAction = entry.index
                     onActiveFocusChanged: if (actionButton.activeFocus) root.selectedAction = entry.index

quickshell/overlays/Toasts.qml

@@ -80,14 +80,9 @@ PanelWindow {
                     }
                 }
 
-                // Countdown rule that drains along the bottom edge.
-                //
-                // It used to be a full-bleed rectangle across the whole toast,
-                // which meant it ran straight through the card's chopped
-                // bottom-left corner and out the other side — a stray bar
-                // hanging off the card at the one place the silhouette is
-                // supposed to be cut. It lives inside the cut now, and ends
-                // where the leaning right edge does.
+                // Countdown hairline that drains along the bottom edge. The
+                // chop and lean terms are zero under the YoRHa theme; they are
+                // kept so the fuse still fits if a shape is brought back.
                 readonly property real fuseSpan: Math.max(0,
                     width - card.chop - card.implicitHeight * card.lean)
 
@@ -96,7 +91,7 @@ PanelWindow {
                     anchors.bottom: parent.bottom
                     anchors.bottomMargin: 1
                     x: card.chop
-                    height: 2
+                    height: 1
                     width: toast.fuseSpan
                     lean: card.lean
                     color: Theme.alpha(card.tone, 0.7)