Apply coder fixes to the project and tidy up some translatable strings

Problem/Motivation

The project fails to adhere to the coding standards tested for by the coder module.

FILE: ...sites/drupal8alt.dev/modules/akamai/src/AkamaiAuthentication.php
----------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
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 6 | ERROR | [x] There must be exactly one blank line after the file
   |       |     comment
----------------------------------------------------------------------
PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
----------------------------------------------------------------------


FILE: ...isk/dev/sites/drupal8alt.dev/modules/akamai/src/AkamaiClient.php
----------------------------------------------------------------------
FOUND 8 ERRORS AFFECTING 8 LINES
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 199 | ERROR | [ ] Comment indentation error, expected only 1 spaces
 275 | ERROR | [ ] Return comment must be on the next line
 277 | ERROR | [ ] Private method name "AkamaiClient::_getQueue" is
     |       |     not in lowerCamel format
 313 | ERROR | [x] Missing function doc comment
 317 | ERROR | [x] Missing function doc comment
 327 | ERROR | [x] Missing function doc comment
 337 | ERROR | [x] Missing function doc comment
 347 | ERROR | [x] Missing function doc comment
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PHPCBF CAN FIX THE 5 MARKED SNIFF VIOLATIONS AUTOMATICALLY
----------------------------------------------------------------------


FILE: ...ites/drupal8alt.dev/modules/akamai/src/Form/CacheControlForm.php
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FOUND 4 ERRORS AND 2 WARNINGS AFFECTING 6 LINES
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  33 | ERROR   | Missing parameter name
  36 | ERROR   | Variable "akamaiClient" is camel caps format. do not
     |         | use mixed case (camelCase), use lower case and _
  37 | ERROR   | Variable "akamaiClient" is camel caps format. do not
     |         | use mixed case (camelCase), use lower case and _
 152 | WARNING | Translatable strings must not begin or end with
     |         | white spaces, use placeholders with t() for
     |         | variables
 170 | ERROR   | If the line declaring an array spans longer than 80
     |         | characters, each element should be broken into its
     |         | own line
 184 | WARNING | Only string literals should be passed to t() where
     |         | possible
----------------------------------------------------------------------


FILE: .../dev/sites/drupal8alt.dev/modules/akamai/src/Form/ConfigForm.php
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FOUND 17 ERRORS AND 2 WARNINGS AFFECTING 12 LINES
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  44 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  44 | ERROR   | [x] Comment indentation error after @todo element,
     |         |     expected 3 spaces
  45 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  45 | ERROR   | [ ] Comment indentation error, expected only 4
     |         |     spaces
  46 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  47 | WARNING | [ ] Line exceeds 80 characters; contains 133
     |         |     characters
  47 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  48 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  49 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  50 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  51 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  51 | ERROR   | [ ] Comment indentation error, expected only 4
     |         |     spaces
  52 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  53 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  54 | WARNING | [x] There must be no blank line following an inline
     |         |     comment
  54 | ERROR   | [x] Line indented incorrectly; expected 4 spaces,
     |         |     found 0
  54 | ERROR   | [x] Inline comments must end in full-stops,
     |         |     exclamation marks, colons, or question marks
 169 | ERROR   | [x] No space found before comment text; expected "//
     |         |     ->set('disabled', $values['disabled'])" but
     |         |     found "//->set('disabled', $values['disabled'])"
 169 | ERROR   | [x] Inline comments must end in full-stops,
     |         |     exclamation marks, colons, or question marks
----------------------------------------------------------------------
PHPCBF CAN FIX THE 16 MARKED SNIFF VIOLATIONS AUTOMATICALLY
----------------------------------------------------------------------


FILE: ...s/drupal8alt.dev/modules/akamai/src/Tests/AkamaiHomepageTest.php
----------------------------------------------------------------------
FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
----------------------------------------------------------------------
 71 | WARNING | Do not concatenate strings to translatable strings,
    |         | they should be part of the t() argument and you
    |         | should use placeholders
----------------------------------------------------------------------

Time: 332ms; Memory: 8.75Mb

Proposed resolution

Fix where possible all the code style issues. After applying the patch there are no fails.

Remaining tasks

User interface changes

Some strings are made properly translatable.

API changes

None

Data model changes

None