fix input translation for searches with android translations

_locales/en/messages.json

@@ -1992,8 +1992,8 @@
   "newSession": {
     "message": "New Session"
   },
-  "searchForAKeyPhrase": {
-    "message": "Search for a key phrase or contact"
+  "searchFor...": {
+    "message": "Search for conversations, contacts, and messages"
   },
   "enterSessionID": {
     "message": "Enter Session ID"

ts/components/session/LeftPaneMessageSection.tsx

@@ -241,7 +241,7 @@ export class LeftPaneMessageSection extends React.Component<Props, State> {
         <SessionSearchInput
           searchString={this.props.searchTerm}
           onChange={this.updateSearchBound}
-          placeholder={window.i18n('searchForAKeyPhrase')}
+          placeholder={window.i18n('searchFor...')}
         />
         {this.renderList()}
         {this.renderBottomButtons()}

ts/components/session/SessionClosableOverlay.tsx

@@ -241,7 +241,7 @@ export class SessionClosableOverlay extends React.Component<Props, State> {
           <UserSearchDropdown
             searchTerm={searchTerm || ''}
             updateSearch={updateSearch}
-            placeholder={window.i18n('searchForAKeyPhrase')}
+            placeholder={window.i18n('searchFor...')}
             searchResults={searchResults}
           />
         )}