Add '@indent_end' markers

Ensures for example that the following scenario

```tiger
let
in
    (
    ) /* <- Inputting a new-line will indent the cursor */
end
```

Does not happen.

queries/indents.scm

@@ -12,20 +12,26 @@
 
 ; Class {{{
 (class_declaration) @indent
+(class_declaration "}" @indent_end)
+
 (class_type) @indent
+(class_type "}" @indent_end)
 ; }}}
 
 ; Groups {{{
 (let_expression) @indent
 "in" @branch
 "end" @branch
+(let_expression "end" @indent_end)
 
 (sequence_expression) @indent
 ")" @branch
+(sequence_expression ")" @indent_end)
 ; }}}
 
 ; Functions and methods {{{
 (parameters) @indent
+(parameters ")" @indent_end)
 
 (function_call) @indent
 (method_call) @indent
@@ -39,12 +45,14 @@
 ; Values and expressions {{{
 (array_value) @indent
 "]" @branch
+(array_value "]" @indent_end)
 
 (array_expression) @indent
 "of" @branch
 
 (record_expression) @indent
 "}" @branch
+(record_expression "}" @indent_end)
 
 (variable_declaration) @indent
 ; }}}