Fix the issues reported by phpcs

Test Bot is Green and Changes look good.

+1 From me for RTBC.

Patch #3 is failed to apply.
Updated patch accordingly.

checked patch #7 it apply cleanly and Fix phpcs coding standards issue

Forgot to added SS

The issue summary should always describe what the issue is trying to fix and, in the case, of coding standards issues, show which command has been used, which arguments have been used, and which report that command shown.

+      '#description' => $this->t('One url per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.',
+        [
+          '@token' => 'https://www.drupal.org/project/token',
+          '@nolink_key' => '<nolink>',
+        ]
+      ),

url is not spelled correctly.

@apaderno thanks for reviewing. I have created MR of patch #7 and include commented change as well.
Please review.

/**
- * Class BreadcrumbBuilder.
+ * Breadcrumb builder class.

That comment is still repeating the class name.

-      '#description' => $this->t('One url per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.', ['@token' => 'https://www.drupal.org/project/token', '@nolink_key' => '<nolink>']),
+      '#description' => $this->t('One URL per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.',
+        [

URL is an acronym and it is only written in one way. Also, since that sentence is going to be changed, also must start from needs to be corrected, since the correct phrase is must start with.
Then, One url per line, you can use Token module. is a comma-splice sentence. Instead of the comma, it should use a period because those are two different sentences.

+ '#description' => $this->t("A set of patterns separated by a newline. @front_key@ is used to front page. The * character is a wildcard. An example path is /admin/* for every admin pages.",

The correct phrase is is used for the front page, not is used to front page.

+ '#description' => $this->t('One URL per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.',

An article is missing before <a href="@token">Token</a> module.

The Needs work status was also set for the issue summary, which does not show what arguments has been passed to phpcs.

- * Configure the user permissions in Administration » People » Permissions:
+ * Configure the user permissions in
+ Administration » People » Permissions:

The last line must be indented.

 /**
- * Class BreadcrumbBuilder.
+ * Breadcrumb builder class.

That is still repeating the class name. Splitting the class name in two words does not change that is the class name.

-      '#description' => $this->t('One url per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.', ['@token' => 'https://www.drupal.org/project/token', '@nolink_key' => '<nolink>']),
+      '#description' => $this->t('One URL per line, you can use <a href="@token">Token</a> module. Url must start from "/". Use @nolink_key if you don\'t want to set a link for the respective title.',
+        [
+          '@token' => 'https://www.drupal.org/project/token',
+          '@nolink_key' => '<nolink>',
+        ]
+      ),

One URL per line, you can use Token module. is a comma-splice sentence (a grammatical error). Instead of a comma, a semicolon or a period must be used.
Url is still a misspelled word. (Acronyms are always in upper-case characters.)
start from is wrong. It is either start with or begin with.

Rebased and pushed changes. Updating IS for the remaining issues.