feat(panel): remove full mode, rename compact to standard and fixed some UI (#328)

* feat(panel): remove full mode, rename compact to standard

- Remove panel-full entry (660×340) and all full-mode code paths
- Rename compact → standard across panel, settings, translations
- Restrict tile hover/click to icon+label only (no border hover)
- Shrink close button to 24×24 with 12px glyph
- Reduce standard section vertical padding to 4px
- Standard panel height: 290 → 260 (matches legacy at 260)
- Fix widget/shortcut/service toggle to respect panel-mode setting
- Update README with correct sizes and behavior

* added new thumbnail.webp

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Co-authored-by: Ahmed5Emad <ahmed5emad@users.noreply.github.com>

screen-toolkit/service.luau

@@ -16,7 +16,6 @@
 -- lands in /tmp as MP4; GIF is produced on save via record.sh convert-gif.
 
 local PANEL_ID = "alexander/screen-toolkit:panel"
-local FULL_PANEL_ID = "alexander/screen-toolkit:panel-full"
 local LEGACY_PANEL_ID = "alexander/screen-toolkit:panel-legacy"
 local RESULT_PANEL_ID = "alexander/screen-toolkit:result"
 
@@ -937,7 +936,7 @@ local HANDLERS = {
   setAudioIn = function(payload) overrideAudioIn = (type(payload) == "table" and payload.value or payload) == true end,
   toggle = function()
     local mode = cfg("panel-mode")
-    local id = mode == "full" and FULL_PANEL_ID or (mode == "legacy" and LEGACY_PANEL_ID or PANEL_ID)
+    local id = mode == "legacy" and LEGACY_PANEL_ID or PANEL_ID
     noctalia.togglePanel(id)
   end,
 }