Enable autocorrect for `Lint/EndAlignment` cop

### Summary

This PR changes .rubocop.yml.

Regarding the code using `if ... else ... end`, I think the coding style
that Rails expects is as follows.

```ruby
var = if cond
  a
else
  b
end
```

However, the current .rubocop.yml setting does not offense for the
following code.

```ruby
var = if cond
        a
      else
        b
      end
```

I think that the above code expects offense to be warned.
Moreover, the layout by autocorrect is unnatural.

```ruby
var = if cond
  a
      else
        b
      end
```

This PR adds a setting to .rubocop.yml to make an offense warning and
autocorrect as expected by the coding style.
And this change also fixes `case ... when ... end` together.

Also this PR itself is an example that arranges the layout using
`rubocop -a`.

### Other Information

Autocorrect of `Lint/EndAlignment` cop is `false` by default.
https://github.com/bbatsov/rubocop/blob/v0.51.0/config/default.yml#L1443

This PR changes this value to `true`.

Also this PR has changed it together as it is necessary to enable
`Layout/ElseAlignment` cop to make this behavior.

7 files changed, 8 insertions, 8 deletions

diff --git a/activesupport/lib/active_support/core_ext/hash/conversions.rb b/activesupport/lib/active_support/core_ext/hash/conversions.rb
index 11d28d12a1..5b48254646 100644
--- a/activesupport/lib/active_support/core_ext/hash/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/hash/conversions.rb
@@ -165,7 +165,7 @@ module ActiveSupport
           Hash[params.map { |k, v| [k.to_s.tr("-", "_"), normalize_keys(v)] } ]
         when Array
           params.map { |v| normalize_keys(v) }
-          else
+        else
           params
         end
       end
@@ -178,7 +178,7 @@ module ActiveSupport
           process_array(value)
         when String
           value
-          else
+        else
           raise "can't typecast #{value.class.name} - #{value.inspect}"
         end
       end
diff --git a/activesupport/lib/active_support/dependencies.rb b/activesupport/lib/active_support/dependencies.rb
index 82c10b3079..abc648e0c6 100644
--- a/activesupport/lib/active_support/dependencies.rb
+++ b/activesupport/lib/active_support/dependencies.rb
@@ -670,7 +670,7 @@ module ActiveSupport #:nodoc:
       when Module
         desc.name ||
           raise(ArgumentError, "Anonymous modules have no name to be referenced by")
-        else raise TypeError, "Not a valid constant descriptor: #{desc.inspect}"
+      else raise TypeError, "Not a valid constant descriptor: #{desc.inspect}"
       end
     end
 
diff --git a/activesupport/lib/active_support/deprecation/reporting.rb b/activesupport/lib/active_support/deprecation/reporting.rb
index 242e21b782..2c004f4c9e 100644
--- a/activesupport/lib/active_support/deprecation/reporting.rb
+++ b/activesupport/lib/active_support/deprecation/reporting.rb
@@ -61,7 +61,7 @@ module ActiveSupport
           case message
           when Symbol then "#{warning} (use #{message} instead)"
           when String then "#{warning} (#{message})"
-            else warning
+          else warning
           end
         end
 
diff --git a/activesupport/lib/active_support/inflector/inflections.rb b/activesupport/lib/active_support/inflector/inflections.rb
index 0450a4be4c..7e5dff1d6d 100644
--- a/activesupport/lib/active_support/inflector/inflections.rb
+++ b/activesupport/lib/active_support/inflector/inflections.rb
@@ -227,7 +227,7 @@ module ActiveSupport
         case scope
         when :all
           @plurals, @singulars, @uncountables, @humans = [], [], Uncountables.new, []
-          else
+        else
           instance_variable_set "@#{scope}", []
         end
       end
diff --git a/activesupport/lib/active_support/inflector/methods.rb b/activesupport/lib/active_support/inflector/methods.rb
index 60eeaa77cb..7e782e2a93 100644
--- a/activesupport/lib/active_support/inflector/methods.rb
+++ b/activesupport/lib/active_support/inflector/methods.rb
@@ -350,7 +350,7 @@ module ActiveSupport
         when 1; "st"
         when 2; "nd"
         when 3; "rd"
-          else    "th"
+        else    "th"
         end
       end
     end
diff --git a/activesupport/lib/active_support/multibyte/unicode.rb b/activesupport/lib/active_support/multibyte/unicode.rb
index a64223c0e0..f923061fae 100644
--- a/activesupport/lib/active_support/multibyte/unicode.rb
+++ b/activesupport/lib/active_support/multibyte/unicode.rb
@@ -276,7 +276,7 @@ module ActiveSupport
           reorder_characters(decompose(:compatibility, codepoints))
         when :kc
           compose(reorder_characters(decompose(:compatibility, codepoints)))
-          else
+        else
           raise ArgumentError, "#{form} is not a valid normalization variant", caller
         end.pack("U*".freeze)
       end
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb
index 4d81ac939e..b75f5733b5 100644
--- a/activesupport/lib/active_support/values/time_zone.rb
+++ b/activesupport/lib/active_support/values/time_zone.rb
@@ -238,7 +238,7 @@ module ActiveSupport
         when Numeric, ActiveSupport::Duration
           arg *= 3600 if arg.abs <= 13
           all.find { |z| z.utc_offset == arg.to_i }
-          else
+        else
           raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}"
         end
       end