chore(deps): update dependency electron to v5

package.json

@@ -191,7 +191,7 @@
     "css-loader": "2.1.1",
     "detect-port": "1.3.0",
     "devtron": "1.4.0",
-    "electron": "4.1.4",
+    "electron": "5.0.4",
     "electron-builder": "20.44.4",
     "electron-devtools-installer": "2.2.4",
     "enzyme": "3.10.0",

yarn.lock

@@ -5845,10 +5845,10 @@ electron-updater@^4.0.0:
     semver "^5.6.0"
     source-map-support "^0.5.9"
 
-electron@4.1.4:
-  version "4.1.4"
-  resolved "https://registry.yarnpkg.com/electron/-/electron-4.1.4.tgz#41ba9e041f38c25c62a7db806884410654df058f"
-  integrity sha512-MelOjntJvd33izEjR6H4N/Uii7y535z/b2BuYXJGLNSHL6o1IlyhUQmfiT87kWABayERgeuYERgvsyf956OOFw==
+electron@5.0.4:
+  version "5.0.4"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-5.0.4.tgz#2e0d09055363e983f4a73317cde4821c39617b02"
+  integrity sha512-7QaKorvANvP+azMT7wElx33oLlqw8QxmLs7/outfH7LC5amErk4EUtWDesQ6Zgr+s5pYFbykl8ZtJ4ZGXER05g==
   dependencies:
     "@types/node" "^10.12.18"
     electron-download "^4.1.0"