title: coc-nvim empty actions, implementation and type definition provider not found
body: <p>I have <code>coc.nvim</code> with <code>pyright</code> and <code>vetur</code> installed. I have the following in my <code>.vimrc</code></p>
  <pre><code>nmap &lt;silent&gt; gd &lt;Plug&gt;(coc-definition)
  nmap &lt;silent&gt; gy &lt;Plug&gt;(coc-type-definition)
  nmap &lt;silent&gt; gi &lt;Plug&gt;(coc-implementation)
  nmap &lt;silent&gt; gr &lt;Plug&gt;(coc-references)
  </code></pre>
  <p>I was hoping that pressnig <code>gi</code> over a function name will take me to the implementation, but alas, neither that nor <code>gy</code> does anything. This is the output of <code>:CocInfo:</code></p>
  <pre><code>undefined## versions
  
  vim version: VIM - Vi IMproved 8.1 8012269
  node version: v14.15.0
  coc.nvim version: 0.0.79-8b967b0bbd
  coc.nvim directory: /home/fbence/.vim/plugged/coc.nvim
  term: dumb
  platform: linux
  
  ## Log of coc.nvim
  
  2020-12-12T18:33:40.895 INFO (pid:131785) [services] - registered service &quot;pyright&quot;
  2020-12-12T18:33:40.896 INFO (pid:131785) [services] - Pyright Server state change: stopped =&gt; starting
  2020-12-12T18:33:40.945 INFO (pid:131785) [plugin] - coc.nvim 0.0.79-8b967b0bbd initialized with node: v14.15.0 after 146ms
  2020-12-12T18:33:40.952 INFO (pid:131785) [language-client-index] - pyright started with 131932
  2020-12-12T18:33:41.096 INFO (pid:131785) [services] - Pyright Server state change: starting =&gt; running
  2020-12-12T18:33:41.100 INFO (pid:131785) [services] - service pyright started
  2020-12-12T18:33:42.654 INFO (pid:131785) [completion-complete] - Results from: around,pyright-1
  2020-12-12T18:33:45.820 INFO (pid:131785) [completion-complete] - Results from: around,pyright-1
  2020-12-12T18:34:48.147 WARN (pid:131785) [Handler] - type definition provider not found!
  2020-12-12T18:34:55.149 WARN (pid:131785) [Handler] - implementation provider not found!
  </code></pre>
  <p>Output in a <code>vue</code> file with <code>vetur</code> is similiar, I get type definition provider not found, implementation provider not found. I also find it strange that checking <code>:CocList actions</code> returns empty. Is something not set up properly or are these functionalities not provided by the two language servers I happen to be using? If so, are there better servers?</p>