[MM-63582] Recent Mentions Not Properly Handling Hyphenated Custom Keywords (#30578)

* quote all terms for better recent mentions accuracy

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Co-authored-by: Mattermost Build <build@mattermost.com>

webapp/.gitignore

@@ -12,3 +12,4 @@ platform/*/dist
 platform/*/lib
 
 config.override.mk
+build