Add pomodoro plugin (port from legacy v4 plugin) (#69)

* add pomodoro plugin

* add thumbnail.webp

* fix translations

* fix translation key

* add required sections to README, add deps field to manifest

* small fixes

* fix config keys

* review fixes

* fix(readme) typos

---------

Co-authored-by: Kirill Sergeev <sergeev@ap-team.ru>
Co-authored-by: Lemmy <studio@quadbyte.net>

pomodoro/widget.luau

@@ -0,0 +1,43 @@
+function onClick()
+    noctalia.togglePanel("thepunkoff/pomodoro:panel")
+end
+
+local isUpdating = false
+noctalia.state.watch("pomodoro.nextCommand", function(command)
+    if command == "toggle" then
+        isUpdating = true 
+    elseif command == "resetAll" then
+        isUpdating = false
+        barWidget.setGlyph("brain")
+        barWidget.setGlyphColor("default")
+        barWidget.setColor("default")
+        barWidget.setText("")
+    end
+end)
+
+--- main
+barWidget.setGlyph("brain")
+
+noctalia.state.watch("pomodoro.state", function(state)
+    if not isUpdating then
+        return
+    end
+
+    local stageIcon = if state.sessionPtr.stage == 1 then "brain" else "coffee"
+    barWidget.setGlyph(stageIcon)
+
+    if state.isRunning then
+        barWidget.setGlyphColor("primary")
+        barWidget.setColor("primary")
+    else
+        barWidget.setGlyphColor("default")
+        barWidget.setColor("default")
+    end
+
+    local hours = math.floor(state.secondsLeft / 3600)
+    local mins = math.floor((state.secondsLeft % 3600) / 60)
+    local secs = state.secondsLeft % 60
+
+    local time = if hours == 0 then string.format("%02d:%02d", mins, secs) else string.format("%d:%02d:%02d", hours, mins, secs)
+    barWidget.setText(time)
+end)