refactor: add comments

src/linux/hardware.zig

@@ -2,6 +2,7 @@ const std = @import("std");
 const c_unistd = @cImport(@cInclude("unistd.h"));
 const c_statvfs = @cImport(@cInclude("sys/statvfs.h"));
 
+/// Struct representing CPU informations
 pub const CpuInfo = struct {
     cpu_name: []u8,
     cpu_cores: i32,
@@ -12,6 +13,7 @@ pub const CpuInfo = struct {
     }
 };
 
+/// Struct representing RAM usage informations
 pub const RamInfo = struct {
     ram_size: f64,
     ram_usage: f64,
@@ -22,6 +24,7 @@ pub const RamInfo = struct {
     }
 };
 
+/// Struct representing Swap usage informations
 pub const SwapInfo = struct {
     swap_size: f64,
     swap_usage: f64,
@@ -32,6 +35,7 @@ pub const SwapInfo = struct {
     }
 };
 
+/// Struct representing Disk usage informations
 pub const DiskInfo = struct {
     disk_path: []const u8,
     disk_size: f64,