chore: minor theme.toml tweaks [no ci]

Author: math-queiroz

theme.toml

@@ -2,10 +2,12 @@ name = 'Rusty Typewriter'
 license = 'MIT'
 licenselink = 'https://github.com/math-queiroz/rusty-typewriter/LICENSE'
 description = 'A rusty hugo theme'
+
 homepage = 'https://github.com/math-queiroz/rusty-typewriter'
 demosite = 'https://math-queiroz.github.io/rusty-typewriter'
+
 tags = ["responsive", "minimal", "blog"]
-features = ["blog", "themes"]
+features = ["blog", "themes", "search"]
 
 [author]
   name = 'Matheus Queiroz'