Add onCleanup function to restore the state of hotlinks feature.

Author: rashedmyt

src/jupyter_matlab_kernel/matlab/+jupyter/execute.m

@@ -45,14 +45,12 @@
 
 % Disable Hotlinks in the output captured. The hotlinks do not have a purpose
 % in Jupyter notebooks.
-previousState = feature('hotlinks','off');
+hotlinksPreviousState = feature('hotlinks','off');
+hotlinksCleanupObj = onCleanup(@() feature('hotlinks', hotlinksPreviousState))
 
 % Use the Live editor API for execution of MATLAB code and capturing the outputs
 resp = jsondecode(matlab.internal.editor.evaluateSynchronousRequest(request));
 
-% Reset the hotlinks feature.
-feature('hotlinks',previousState);
-
 % Post-process the outputs to conform to Jupyter API.
 result = processOutputs(resp.outputs);