add PR Labeler app configuration file

.github/pr-labeler.yml

@@ -0,0 +1,31 @@
+# The bot always updates the labels, add/remove as necessary [default: false]
+alwaysReplace: false
+# Treats the text and labels as case sensitive [default: true]
+caseSensitive: false
+# Array of labels to be applied to the PR [default: []]
+customLabels:
+  # Finds the `text` within the PR title and body and applies the `label`
+  - text: 'bug'
+    label: 'bug'
+  - text: 'fix'
+    label: 'bug'
+  - text: 'dependabot'
+    label: 'bug'
+  - text: 'New Crowdin updates'
+    label: 'bug'
+  - text: 'New Crowdin updates'
+    label: 'kind/i18n'
+  - text: 'feature'
+    label: 'enhancement'
+  - text: 'add new'
+    label: 'enhancement'
+  - text: 'refactor'
+    label: 'enhancement'
+  - text: 'refactor'
+    label: 'Code Refactor'
+# Search the body of the PR for the `text` [default: true]
+searchBody: true
+# Search the title of the PR for the `text` [default: true]
+searchTitle: true
+# Search for whole words only [default: false]
+wholeWords: false