Add and improve chat input pane, actions, icons on Obsidian client

- Move delete icon to left of chat input. This makes it harder to
  inadvertently click
- Add send button to chat footer. Enter being the only way to send
  messages is not intuitive, outside standard modern UI patterns
- Color chat message send button to make it primary CTA on web client
- Make chat footer shorter. Use no or round border on action buttons

src/interface/obsidian/src/chat_modal.ts

@@ -17,17 +17,19 @@ export class KhojChatModal extends Modal {
         this.setting = setting;
 
         // Register Modal Keybindings to send user message
-        this.scope.register([], 'Enter', async () => {
-            // Get text in chat input elmenet
-            let input_el = <HTMLInputElement>this.contentEl.getElementsByClassName("khoj-chat-input")[0];
+        this.scope.register([], 'Enter', async () => { await this.chat() });
+    }
 
-            // Clear text after extracting message to send
-            let user_message = input_el.value;
-            input_el.value = "";
+    async chat() {
+        // Get text in chat input element
+        let input_el = <HTMLInputElement>this.contentEl.getElementsByClassName("khoj-chat-input")[0];
 
-            // Get and render chat response to user message
-            await this.getChatResponse(user_message);
-        });
+        // Clear text after extracting message to send
+        let user_message = input_el.value.trim();
+        input_el.value = "";
+
+        // Get and render chat response to user message
+        await this.getChatResponse(user_message);
     }
 
     async onOpen() {
@@ -42,10 +44,19 @@ export class KhojChatModal extends Modal {
 
         // Get chat history from Khoj backend
         let getChatHistorySucessfully = await this.getChatHistory(chatBodyEl);
-        let placeholderText = getChatHistorySucessfully ? "Chat with Khoj [Hit Enter to send message]" : "Configure Khoj to enable chat";
+        let placeholderText = getChatHistorySucessfully ? "Message" : "Configure Khoj to enable chat";
 
         // Add chat input field
         let inputRow = contentEl.createDiv("khoj-input-row");
+        let clearChat = inputRow.createEl("button", {
+            text: "Clear History",
+            attr: {
+                class: "khoj-input-row-button clickable-icon",
+            },
+        })
+        clearChat.addEventListener('click', async (_) => { await this.clearConversationHistory() });
+        setIcon(clearChat, "trash");
+
         let chatInput = inputRow.createEl("input", {
             attr: {
                 type: "text",
@@ -61,20 +72,21 @@ export class KhojChatModal extends Modal {
             text: "Transcribe",
             attr: {
                 id: "khoj-transcribe",
-                class: "khoj-transcribe khoj-input-row-button",
+                class: "khoj-input-row-button clickable-icon ",
             },
         })
         transcribe.addEventListener('click', async (_) => { await this.speechToText() });
         setIcon(transcribe, "mic");
 
-        let clearChat = inputRow.createEl("button", {
-            text: "Clear History",
+        let send = inputRow.createEl("button", {
+            text: "Send",
             attr: {
-                class: "khoj-input-row-button",
+                id: "khoj-chat-send",
+                class: "khoj-input-row-button clickable-icon",
             },
         })
-        clearChat.addEventListener('click', async (_) => { await this.clearConversationHistory() });
-        setIcon(clearChat, "trash");
+        send.addEventListener('click', async (_) => { await this.chat() });
+        setIcon(send, "arrow-up-circle");
 
         // Scroll to bottom of modal, till the send message input box
         this.modalEl.scrollTop = this.modalEl.scrollHeight;

src/interface/obsidian/styles.css

@@ -230,36 +230,30 @@ img {
 }
 .khoj-input-row {
     display: grid;
-    grid-template-columns: auto 32px 32px;
+    grid-template-columns: 32px auto 32px 32px;
     grid-column-gap: 10px;
     grid-row-gap: 10px;
     background: var(--background-primary);
+    margin: 0 0 0 -8px;
 }
 #khoj-chat-input.option:hover {
     box-shadow: 0 0 11px var(--background-modifier-box-shadow);
 }
 #khoj-chat-input {
     font-size: var(--font-ui-medium);
-    padding: 25px 20px;
+    padding: 0 0 0 12px;
+    border-radius: 16px;
+    height: 32px;
 }
 .khoj-input-row-button {
-    background: var(--background-primary);
-    border: none;
-    border-radius: 5px;
-    padding: 5px;
+    border-radius: 50%;
+    padding: 4px;
     --icon-size: var(--icon-size);
-    height: auto;
-    font-size: 14px;
-    font-weight: 300;
-    line-height: 1.5em;
-    cursor: pointer;
-    transition: background 0.3s ease-in-out;
 }
-.khoj-input-row-button:hover {
-    background: var(--background-modifier-hover);
-}
-.khoj-input-row-button:active {
-    background: var(--background-modifier-active);
+#khoj-chat-send .svg-icon {
+    background: var(--khoj-sun);
+    border-radius: 50%;
+    color: #222;
 }
 
 @media (pointer: coarse), (hover: none) {