software/theia: version up 1.20.0

https://github.com/eclipse-theia/theia/blob/v1.20.0/CHANGELOG.md#v1200---11252021

software/theia/buildout.hash.cfg

@@ -47,7 +47,7 @@ md5sum = 9e8c17a4b2d802695caf0c2c052f0d11
 
 [yarn.lock]
 _update_hash_filename_ = yarn.lock
-md5sum = 6faa52754c46e505912a478bc8ba3300
+md5sum = 067d2db611b21f77885f3adfd7f81453
 
 [python-language-server-requirements.txt]
 _update_hash_filename_ = python-language-server-requirements.txt
@@ -59,7 +59,7 @@ md5sum = 8157c22134200bd862a07c6521ebf799
 
 [slapos.css.in]
 _update_hash_filename_ = slapos.css.in
-md5sum = 841141fc699b8d8918ed0669e6e61995
+md5sum = d2930ec3ef973b7908f0fa896033fd64
 
 [logo.png]
 _update_hash_filename_ = logo.png

software/theia/slapos.css.in

-/* backported fixes */
-/* https://github.com/eclipse-theia/theia/commit/616c34e1c446a706f4cb02182b2d9195ef3ea854 */
-.monaco-editor .monaco-list .monaco-list-row.focused,
-.monaco-editor .monaco-list .monaco-list-row.focused,
-.monaco-editor .monaco-list .monaco-list-row.focused .suggest-icon {
-  color: var(--theia-list-activeSelectionForeground) !important;
-  background-color: var(--theia-list-activeSelectionBackground) !important;
-}
-
 /* logo */
 .theia-icon {
     background-image: url('/{{ logo_image }}');