redirect dictionary requests to dictionary repository

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: false
 contact_links:
+  - name: Dictionary request
+    url: https://codeberg.org/Helium314/aosp-dictionaries
+    about: Requests for dictionaries (used for suggestions / autocompletion) will be handled in the linked dictionary repository. You can check whether a dictionary for the language you want already exists there.
   - name: Discussion
     url: https://github.com/Helium314/OpenBoard/discussions
     about: For discussions and feedback about this version of OpenBoard, asking questions or talking about ideas which are not yet actionable (i.e. not suitable for an issue).

.github/ISSUE_TEMPLATE/new-language-request.md

@@ -1,13 +0,0 @@
----
-name: Language request
-about: Use this to request autocompletion support for a missing language, or for issues with existing dictionaries
-labels: dictionaries
----
-
-<!--
-Please search open and closed issues to avoid duplicates.
-
-Before you suggest adding a language, check if the language is already included in the downloadable dictionaries at https://github.com/Helium314/openboard/tree/new/dictionaries/dict or experimental dictionaries at  https://github.com/Helium314/openboard/tree/new/dictionaries/experimental/dict
-
-If you open an issue about an existing dictionary, add information which dictionary you use (included in app, or link)
--->