feat: add commit age to git blame info

src/config.zig

@@ -24,6 +24,7 @@ inline_diagnostics: bool = true,
 inline_diagnostics_alignment: Alignment = .right,
 inline_vcs_blame: bool = false,
 inline_vcs_blame_alignment: Alignment = .right,
+inline_vcs_blame_age: AgeFormat = .short,
 animation_min_lag: usize = 0, //milliseconds
 animation_max_lag: usize = 50, //milliseconds
 hover_time_ms: usize = 500, //milliseconds
@@ -240,3 +241,8 @@ pub const Alignment = enum {
     left,
     right,
 };
+
+pub const AgeFormat = enum {
+    short,
+    long,
+};