DEV: Colocate all chat component templates (#19266)

plugins/chat/assets/javascripts/discourse/components/chat-composer.hbs

@@ -0,0 +1,55 @@
+{{#if this.replyToMsg}}
+  <ChatComposerMessageDetails @message={{this.replyToMsg}} @icon="reply" @action={{action "cancelReplyTo"}} />
+{{/if}}
+
+{{#if this.editingMessage}}
+  <ChatComposerMessageDetails @message={{this.editingMessage}} @icon="pencil-alt" @action={{action "cancelEditing"}} />
+{{/if}}
+
+<div class="chat-composer-emoji-picker-anchor"></div>
+
+<div
+  role="region"
+  aria-label={{i18n "chat.aria_roles.composer"}}
+  class="chat-composer {{if this.disableComposer "is-disabled"}}"
+>
+  {{#if
+    (and
+      this.chatEmojiPickerManager.opened
+      (eq this.chatEmojiPickerManager.context "chat-composer")
+    )
+  }}
+    <DButton @icon="times" @action={{this.chatEmojiPickerManager.close}} @class="chat-composer__close-emoji-picker-btn btn-flat" />
+  {{else}}
+    {{#unless this.disableComposer}}
+      <ChatComposerDropdown @buttons={{this.dropdownButtons}} @isDisabled={{this.disableComposer}} />
+    {{/unless}}
+  {{/if}}
+
+  <DTextarea @value={{readonly this.value}} @input={{action "onTextareaInput" value="target.value"}} @type="text" @class="chat-composer-input" @disabled={{this.disableComposer}} @autocorrect="on" @autocapitalize="sentences" @placeholder={{this.placeholder}} @focus-in={{action "onTextareaFocusIn" value="target"}} @rows={{1}} />
+
+  {{#if this.isNetworkUnreliable}}
+    <span
+      class="chat-composer__unreliable-network"
+      title={{i18n "chat.unreliable_network"}}
+    >
+      {{d-icon "exclamation-circle"}}
+    </span>
+  {{/if}}
+
+  <FlatButton @action={{action "sendClicked"}} @icon="paper-plane" @class="icon-only send-btn chat-composer-inline-button" @title={{this.sendTitle}} @disabled={{this.sendDisabled}} />
+
+  {{#unless this.disableComposer}}
+    <ChatComposerInlineButtons @buttons={{this.inlineButtons}} />
+  {{/unless}}
+</div>
+
+{{#if this.canAttachUploads}}
+  <ChatComposerUploads @fileUploadElementId={{this.fileUploadElementId}} @onUploadChanged={{action "uploadsChanged"}} />
+{{/if}}
+
+{{#unless this.chatChannel.isDraft}}
+  <div class="chat-replying-indicator-container">
+    <ChatReplyingIndicator @chatChannel={{this.chatChannel}} />
+  </div>
+{{/unless}}