Add changelog and fix condition not matching globs on body

Signed-off-by: Nicolas Werner <nicolas.werner@hotmail.de>

changelog.d/6457.bugfix

@@ -0,0 +1 @@
+Fix that replies to @roomba would be highlighted as a room ping. Contributed by Nico.

matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/session/pushrules/EventMatchCondition.kt

@@ -56,7 +56,8 @@ class EventMatchCondition(
         // word boundary.
         return try {
             if (key == 'content.body') {
-                value.caseInsensitiveFind(pattern)
+                val regex = Regex("(\\W|^)"+pattern.simpleGlobToRegExp() + "(\\W|$)", setOf(RegexOption.DOT_MATCHES_ALL, RegexOption.IGNORE_CASE))
+                regex.containsMatchIn(value)
             } else {
                 val regex = Regex(pattern.simpleGlobToRegExp(), setOf(RegexOption.DOT_MATCHES_ALL, RegexOption.IGNORE_CASE))
                 regex.matches(value)