Add pedal smoothness source

[timklge]

fix #75

[Copilot]

Pull request overview

Adds Pedal Smoothness as a new selectable data source for the Powerbar extension (issue #75), including settings/UI support and the streaming/rendering logic.

Changes:

• Add new SelectedSource.PEDAL_SMOOTHNESS and localized strings for the new source and its min/max range labels.
• Persist new settings (minPedalSmoothness / maxPedalSmoothness) and expose them in the settings screen when Pedal Smoothness is selected.
• Implement Pedal Smoothness streaming in Window and refactor several enums into datatypes/.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
app/src/main/res/values/strings.xml	Adds EN strings for Pedal Smoothness source + min/max labels.
app/src/main/res/values-de/strings.xml	Adds DE strings for Pedal Smoothness source + min/max labels.
app/src/main/kotlin/de/timklge/karoopowerbar/screens/MainScreen.kt	Adds UI controls and persistence wiring for Pedal Smoothness min/max settings; switches to shared SelectedSource.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/SelectedSource.kt	Moves SelectedSource out of the screen file and adds PEDAL_SMOOTHNESS.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/PowerStreamSmoothing.kt	Extracts power smoothing enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/PedalBalanceSmoothing.kt	Extracts pedal-balance smoothing enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/Gears.kt	Extracts gears enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/FlightAttendantSuspensionStateValue.kt	Extracts flight attendant state enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/FlightAttendantSuspensionMode.kt	Extracts flight attendant mode enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/datatypes/FlightAttendantSuspensionLocation.kt	Extracts flight attendant location enum from Window.
app/src/main/kotlin/de/timklge/karoopowerbar/Window.kt	Adds Pedal Smoothness streaming + rendering; updates imports after enum extraction.
app/src/main/kotlin/de/timklge/karoopowerbar/Settings.kt	Adds persisted min/max pedal smoothness settings fields and defaults; updates SelectedSource import.
app/src/main/kotlin/de/timklge/karoopowerbar/ForegroundService.kt	Updates SelectedSource import path.
app/src/main/kotlin/de/timklge/karoopowerbar/CustomProgressBar.kt	Updates SelectedSource import path.
app/build.gradle.kts	Updates generated manifest release notes for this release.
README.md	Documents Pedal Smoothness as a supported data source.

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