update LRU -> Lru

src/cache/Cache.zig

@@ -1,10 +1,10 @@
 const std = @import("std");
-const LRU = @import("LRU.zig");
+const Lru = @import("Lru.zig");
 
 const Cache = @This();
 
 allocator: std.mem.Allocator,
-lru: LRU,
+lru: Lru,
 cache_dir: []const u8,
 file_threshold: usize,
 
@@ -21,7 +21,7 @@ pub fn init(allocator: std.mem.Allocator, config: Config) !Cache {
 
     return Cache{
         .allocator = allocator,
-        .lru = try LRU.init(allocator, config.max_entries),
+        .lru = try Lru.init(allocator, config.max_entries),
         .cache_dir = try allocator.dupe(u8, config.cache_dir),
         .file_threshold = config.file_threshold,
     };

src/main.zig

@@ -100,7 +100,7 @@ pub fn main() !void {
 test {
     std.testing.refAllDecls(@This());
     _ = @import("config.zig");
-    _ = @import("cache/LRU.zig");
+    _ = @import("cache/Lru.zig");
     _ = @import("weather/mock.zig");
     _ = @import("http/RateLimiter.zig");
     _ = @import("http/query.zig");