Add "power" page

Signed-off-by: Hadi <[email protected]>

README.md

@@ -36,6 +36,7 @@ SetTUIngs is a keyboard-driven TUI for the everyday Linux system settings you'd
 - **Ethernet & VPN**: Bring interfaces up or down and connect to VPN profiles from the same Network page.
 - **Bluetooth**: Discover, pair, connect, trust, and forget devices, and power the adapter on/off.
 - **Audio**: Adjust output/input volume, mute, and pick the default speaker or mic; preview a device with a test tone or a live input-level meter; control the volume of individual apps (browser tab, Spotify, etc.) independently.
+- **Power**: Switch power profiles (performance, balanced, power-saver) and check battery charge, health, and time remaining at a glance.
 - **Vim-like Navigation**: The entire interface is keyboard-driven with Vim-inspired shortcuts. Use `h/j/k/l` to move, `gg`/`G` to jump to the top/bottom, `/` to search, `q` to close panels, and more. All keybindings are fully customizable via the config file.
 
 ## Installation
@@ -90,7 +91,7 @@ Flags:
       --add-default-config   copy the default config file to the config path and exit
   -c, --config string        path to config file
   -h, --help                 help for settuings
-  -p, --page string          page to open at launch (About, Network, Bluetooth, Audio)
+  -p, --page string          page to open at launch (About, Network, Bluetooth, Audio, Power)
   -v, --version              version for settuings
 ```
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