Fix typo in policy_templates.json

Change-Id: Ie7fc936bdfaa4a49b32e490a0d80bb29e4840528
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3774353
Reviewed-by: Roman Sorokin <rsorokin@chromium.org>
Commit-Queue: Viktoriia Kovalova <vkovalova@google.com>
Cr-Commit-Position: refs/heads/main@{#1026252}

components/policy/resources/policy_templates.json

@@ -5602,7 +5602,7 @@
 
       Leaving the policy unset means no apps or extensions are autoinstalled, and users can uninstall any app or extension in <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>.
 
-      This policy superseeds <ph name="EXTENSION_INSTALL_BLOCKLIST_POLICY_NAME">ExtensionInstallBlocklist</ph> policy. If a previously force-installed app or extension is removed from this list, <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> automatically uninstalls it.
+      This policy supersedes <ph name="EXTENSION_INSTALL_BLOCKLIST_POLICY_NAME">ExtensionInstallBlocklist</ph> policy. If a previously force-installed app or extension is removed from this list, <ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph> automatically uninstalls it.
 
       On <ph name="MS_WIN_NAME">Microsoft® Windows®</ph> instances, apps and extensions from outside the Chrome Web Store can only be forced installed if the instance is joined to a <ph name="MS_AD_NAME">Microsoft® Active Directory®</ph> domain, running on Windows 10 Pro, or enrolled in Chrome Browser Cloud Management.