feat(battery): add option to show charge percentage next to the icon (#994)

* feat(battery): add option to show charge percentage next to the icon

* feat: proper padding and text sizing

* chore: use from_vec instead of from_children

* chore: remove battery percentage setting from applet dropdown

* chore: move config config definition to cosmic-applets-config

* feat: add subscription for config

* chore: revert unnecessary config module change

* fix: correctly scale battery icon size

* chore: change battery applet id

* feat: better battery text sizing

---------

Co-authored-by: Levi Portenier <levi@system76.com>

cosmic-applet-battery/Cargo.toml

@@ -7,6 +7,8 @@ license = "GPL-3.0-only"
 [dependencies]
 anyhow.workspace = true
 cosmic-time.workspace = true
+cosmic-config.workspace = true
+cosmic-applets-config.workspace = true
 drm = "0.14.1"
 futures.workspace = true
 i18n-embed-fl.workspace = true
@@ -20,6 +22,7 @@ tracing-subscriber.workspace = true
 tracing.workspace = true
 udev = "0.9"
 zbus.workspace = true
+serde.workspace = true
 
 [dependencies.cosmic-settings-upower-subscription]
 git = "https://github.com/pop-os/cosmic-settings"