add chatterino icon to linux install script

resources/.gitignore

@@ -0,0 +1 @@
+linuxinstall

resources/generate_resources.py

@@ -8,7 +8,7 @@ ignored_files = ['qt.conf', 'resources.qrc', 'resources_autogenerated.qrc', 'win
 
 # to ignore all files in a/b, add a/b to ignored_directories.
 # this will ignore a/b/c/d.txt and a/b/xd.txt
-ignored_directories = ['__pycache__']
+ignored_directories = ['__pycache__', 'linuxinstall']
 
 def isNotIgnored(file):
     # check if file exists in an ignored direcory