LibWeb: Implement string->number for type=datetime-local input elements

Author: https://github.com/sideshowbarker
Commit: 4def3fe567
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/3849
Reviewed-by: https://github.com/tcl3

Tests/LibWeb/Text/expected/wpt-import/html/semantics/forms/constraints/form-validation-checkValidity.txt

@@ -2,8 +2,7 @@ Harness status: OK
 
 Found 132 tests
 
-126 Pass
-6 Fail
+132 Pass
 Pass	[INPUT in TEXT status] no constraint
 Pass	[INPUT in TEXT status] no constraint (in a form)
 Pass	[INPUT in TEXT status] not suffering from being too long
@@ -58,12 +57,12 @@ Pass	[INPUT in EMAIL status] suffering from being missing
 Pass	[INPUT in EMAIL status] suffering from being missing (in a form)
 Pass	[INPUT in DATETIME-LOCAL status] no constraint
 Pass	[INPUT in DATETIME-LOCAL status] no constraint (in a form)
-Fail	[INPUT in DATETIME-LOCAL status] suffering from an overflow
-Fail	[INPUT in DATETIME-LOCAL status] suffering from an overflow (in a form)
-Fail	[INPUT in DATETIME-LOCAL status] suffering from an underflow
-Fail	[INPUT in DATETIME-LOCAL status] suffering from an underflow (in a form)
-Fail	[INPUT in DATETIME-LOCAL status] suffering from a step mismatch
-Fail	[INPUT in DATETIME-LOCAL status] suffering from a step mismatch (in a form)
+Pass	[INPUT in DATETIME-LOCAL status] suffering from an overflow
+Pass	[INPUT in DATETIME-LOCAL status] suffering from an overflow (in a form)
+Pass	[INPUT in DATETIME-LOCAL status] suffering from an underflow
+Pass	[INPUT in DATETIME-LOCAL status] suffering from an underflow (in a form)
+Pass	[INPUT in DATETIME-LOCAL status] suffering from a step mismatch
+Pass	[INPUT in DATETIME-LOCAL status] suffering from a step mismatch (in a form)
 Pass	[INPUT in DATETIME-LOCAL status] suffering from being missing
 Pass	[INPUT in DATETIME-LOCAL status] suffering from being missing (in a form)
 Pass	[INPUT in DATE status] no constraint

Tests/LibWeb/Text/expected/wpt-import/html/semantics/forms/constraints/form-validation-validity-rangeOverflow.txt

@@ -2,19 +2,19 @@ Harness status: OK
 
 Found 49 tests
 
-41 Pass
-8 Fail
+43 Pass
+6 Fail
 Pass	[INPUT in DATETIME-LOCAL status] The max attribute is not set
 Pass	[INPUT in DATETIME-LOCAL status] Value is empty string
 Pass	[INPUT in DATETIME-LOCAL status] The max attribute is an invalid local date time string
 Pass	[INPUT in DATETIME-LOCAL status] The max attribute is greater than the value attribute
 Pass	[INPUT in DATETIME-LOCAL status] The value is an invalid local date time string(hour is greater than 23)
 Pass	[INPUT in DATETIME-LOCAL status] The value if an invalid local date time string(year is two digits)
-Fail	[INPUT in DATETIME-LOCAL status] The value is greater than max
+Pass	[INPUT in DATETIME-LOCAL status] The value is greater than max
 Fail	[INPUT in DATETIME-LOCAL status] The value is greater than max(with millisecond in 1 digit)
 Fail	[INPUT in DATETIME-LOCAL status] The value is greater than max(with millisecond in 2 digits)
 Fail	[INPUT in DATETIME-LOCAL status] The value is greater than max(with millisecond in 3 digits)
-Fail	[INPUT in DATETIME-LOCAL status] The value is greater than max(Year is 10000 should be valid)
+Pass	[INPUT in DATETIME-LOCAL status] The value is greater than max(Year is 10000 should be valid)
 Pass	[INPUT in DATE status] The max attribute is not set
 Pass	[INPUT in DATE status] Value is empty string
 Pass	[INPUT in DATE status] The max attribute is an invalid date

Tests/LibWeb/Text/expected/wpt-import/html/semantics/forms/constraints/form-validation-validity-rangeUnderflow.txt

@@ -2,19 +2,19 @@ Harness status: OK
 
 Found 47 tests
 
-39 Pass
-8 Fail
+41 Pass
+6 Fail
 Pass	[INPUT in DATETIME-LOCAL status] The min attribute is not set
 Pass	[INPUT in DATETIME-LOCAL status] Value is empty string
 Pass	[INPUT in DATETIME-LOCAL status] The min attribute is an invalid local date time string
 Pass	[INPUT in DATETIME-LOCAL status] The min attribute is less than the value attribute
 Pass	[INPUT in DATETIME-LOCAL status] The value is an invalid local date time string(hour is greater than 23)
 Pass	[INPUT in DATETIME-LOCAL status] The value is an invalid local date time string(year is two digits)
-Fail	[INPUT in DATETIME-LOCAL status] The value is less than min
+Pass	[INPUT in DATETIME-LOCAL status] The value is less than min
 Fail	[INPUT in DATETIME-LOCAL status] The value is less than min(with millisecond in 1 digit)
 Fail	[INPUT in DATETIME-LOCAL status] The value is less than min(with millisecond in 2 digits)
 Fail	[INPUT in DATETIME-LOCAL status] The value is less than min(with millisecond in 3 digits)
-Fail	[INPUT in DATETIME-LOCAL status] The value is less than min(Year is 10000 should be valid)
+Pass	[INPUT in DATETIME-LOCAL status] The value is less than min(Year is 10000 should be valid)
 Pass	[INPUT in DATETIME-LOCAL status] The value is greater than max
 Pass	[INPUT in DATE status] The min attribute is not set
 Pass	[INPUT in DATE status] Value is empty string