Changes Composer's upload icon tooltip to "upload document"

Signed-off-by: Cyrille Bollu <cyrpub@bollu.be>

src/components/Composer.vue

@@ -95,7 +95,7 @@
 					</div>
 				</div>
 				<div class="emptySpace" />
-				<label v-tooltip="'Upload image'" class="button icon-upload" for="file-upload" />
+				<label v-tooltip="'Upload document'" class="button icon-upload" for="file-upload" />
 				<input id="file-upload" ref="addAttach" class="upload-button"
 					type="file" @change="uploadDocument">
 			</div>