Add descriptive error messages to assertViewHas()

[3Descape]

Problem Statement:

Currently, when passing multiple key-value pairs to assertViewHasAll() and an error occurs, there is no feedback to which of the many fields caused the assertion to fail. Not even the stacktrace and line numbers provide sufficient information.

Example:

$response->assertViewHasAll([
    'key_without_value',
    'key_with_value' => 10,
    'key_with_closure' => fn ($value) => $value == 10,
    'key_with_model' => Customer::first(),
    'key_with_collection' => Customer::factory()->count(10)->create(),
]);

Before:

Solution:

This PR adds custom error messages to the underlying assertions to give the user better feedback, which of the fields caused the assertion error.

Please feel free to make any suggestions regarding the exact text that we want to use in the error messages - these are just what I came up with when doing a quick test.

After:

key_without_value:

key_with_value

key_with_closure

key_with_model

key_with_collection