message: Move specific latex3 syntax in a repository node
diff: </dict>
  </array>
  </dict>
  + <dict>
  + <key>include</key>
  + <string>#functions</string>
  + </dict>
  + <dict>
  + <key>include</key>
  + <string>#variables</string>
  + </dict>
  + <dict>
  + <key>include</key>
  + <string>text.tex.latex</string>
  + </dict>
  + </array>
  + <key>repository</key>
  + <dict>
  + <key>functions</key>
  <dict>
  <key>captures</key>
  <dict>
  <key>name</key>
  <string>keyword.control.expl.latex</string>
  </dict>
  + <key>variables</key>
  <dict>
  <key>captures</key>
  <dict>
  <key>name</key>
  <string>variable.expl.latex</string>
  </dict>
  - <dict>
  - <key>include</key>
  - <string>text.tex.latex</string>
  </dict>
  - </array>
  <key>scopeName</key>
  <string>text.tex.latex.expl3</string>
  <key>uuid</key>
  