mcpp.toml: dist-web implies surface, like every sibling member

`[features.dist-web]` was missing `implies = ["surface"]`, present on
every other dist/rules/tools feature and stated as the rule in this
file's own header comment ("every member that embeds a payload implies
it"). A prior merge also dropped the blank line before
`[features.dist-apk]`.

Author: Sunrisepeak

mcpp.toml

@@ -164,6 +164,8 @@ implies = ["surface"]
 
 [features.dist-web]
 sources = ["dist/web.cppm"]
+implies = ["surface"]
+
 [features.dist-apk]
 sources = ["dist/apk.cppm"]
 implies = ["surface"]