## Summary

The shipped LocalSend window rule in `default/hypr/apps/localsend.lua` does not match on Hyprland 0.56, so LocalSend opens **tiled** instead of floating — and while tiled, mouse **clicks on buttons do nothing** (hover works, press events never reach the app). The app is unusable until the window is floated.

## Steps to reproduce

1. Fresh Omarchy install, Wayland/Hyprland session (Hyprland 0.56.2).
2. Launch LocalSend (1.18.1, pacman).
3. Window opens **tiled** (floating: false), despite the shipped rule:
   ```lua
   -- /usr/share/omarchy/default/hypr/apps/localsend.lua
   o.window("(Share|localsend)", { float = true, center = true })
   ```
4. Click any button in the window (e.g. receive a text message, then click its "Copy" button). Hover reacts, click does nothing.
5. Toggle the window floating (SUPER+T) → the same clicks work fine.

## Root cause (hypothesis)

The class regex `(Share|localsend)` is unanchored. The window's class is `org.localsend.localsend_app`, which **contains** the substring `localsend`, so under substring regex semantics the rule should match — it does not.

Every other shipped string rule uses anchors, e.g.:
```lua
o.window("^(1[p|P]assword)$", ...)   -- apps/1password.lua
o.window("^(Bitwarden)$", ...)       -- apps/bitwarden.lua
```
`localsend.lua` appears to be the only unanchored string rule. Hyprland 0.56's `hl.window_rule` class matching seems to require a full-match (anchored) regex.

## Verification

Adding an anchored rule in the user config fixes it — the window floats on launch and clicks work:
```lua
o.window("^org\\.localsend\\.localsend_app$", { float = true, center = true })
```
(Confirmed: `hyprctl clients` reports `floating: true` for the relaunched window.)

Note: LocalSend 1.18.0 switched Linux windows from the GTK3 headerbar to native SSD decorations — likely why tiled hit-testing breaks (press events offset vs. content). Worth checking whether the fix belongs in the omarchy rule, the LocalSend window class, or both.

## Environment

- Omarchy 4.0.0-1
- Hyprland 0.56.2 (v0.56.2, efb5099)
- LocalSend 1.18.1-1 (pacman)
- Arch Linux, kernel 7.1.8-arch1-3, x86_64
- Intel Core Ultra 7 155H / Intel Arc Graphics (integrated), Wayland session