* remove ≔ from the language and replace it by :=
* revert accidental changes in juvix input mode
* update stdlib submodule
* rename ℕ by Nat in the tests and examples
* fix shell tests
* add a simple positive test
* add lambda expressions to microjuvix language
* add basic normalization of type aliases
* fix test name
* normalize only functions on types
* normalize when matching
* fix type of inductive names
* improve detection of normalizing functions
* remove obsolete comment
* match constructor return type
* add test for issue 1333
* fix existing tests
* use lambda case
* add strong normalization
* Add test cases for type aliases and another fix
Co-authored-by: Jonathan Cubides <jonathan.cubides@uib.no>