Move Emacs, Obsidian plugin code out from under src/khoj directory

- What
  - The Emacs and Obsidian interfaces stay in their original
    directories under src/
  - src/khoj now only contains code meant for pypi packaging

- Benefits
  - This avoids having to update khoj MELPA, Obsidian plugin config as
    the Emacs, Obsidian code is under their original directories
  - It separates the code in src/khoj meant for python packaging from
    code for external interfaces like Emacs and Obsidian

src/interface/emacs/README.org

@@ -4,19 +4,19 @@
   /Natural, Incremental Search for your Second Brain/
 
 ** Table of Contents
-  - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#features][Features]]
-  - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Interface][Interface]]
-  - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Setup][Setup]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#1-Setup-Backend][Setup Backend]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#2-Install-Khojel][Install Khoj.el]]
-  - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Use][Use]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Search][Search]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Find-similar-entries][Find Similar Entries]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Advanced-usage][Advanced Usage]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Khoj-menu][Khoj Menu]]
-  - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Upgrade][Upgrade]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Upgrade-Khoj-Backend][Upgrade Backend]]
-    - [[https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs#Upgrade-Khojel][Upgrade Khoj.el]]
+  - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#features][Features]]
+  - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Interface][Interface]]
+  - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Setup][Setup]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#1-Setup-Backend][Setup Backend]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#2-Install-Khojel][Install Khoj.el]]
+  - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Use][Use]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Search][Search]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Find-similar-entries][Find Similar Entries]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Advanced-usage][Advanced Usage]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Khoj-menu][Khoj Menu]]
+  - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Upgrade][Upgrade]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Upgrade-Khoj-Backend][Upgrade Backend]]
+    - [[https://github.com/debanjum/khoj/tree/master/src/interface/emacs#Upgrade-Khojel][Upgrade Khoj.el]]
 
 ** Features
   - *Natural*: Advanced natural language understanding using Transformer based ML Models
@@ -58,7 +58,7 @@
     ;; Install Khoj Package using Straight.el
     (use-package khoj
       :after org
-      :straight (khoj :type git :host github :repo "debanjum/khoj" :files (:defaults "src/khoj/interface/emacs/khoj.el"))
+      :straight (khoj :type git :host github :repo "debanjum/khoj" :files (:defaults "src/interface/emacs/khoj.el"))
       :bind ("C-c s" . 'khoj))
   #+end_src
 

src/interface/emacs/khoj.el

@@ -7,7 +7,7 @@
 ;; Keywords: search, org-mode, outlines, markdown, beancount, ledger, image
 ;; Version: 0.3.0
 ;; Package-Requires: ((emacs "27.1") (transient "0.3.0"))
-;; URL: https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs
+;; URL: https://github.com/debanjum/khoj/tree/master/src/interface/emacs
 
 ;; This file is NOT part of GNU Emacs.
 

src/interface/emacs/tests/khoj-tests.el

@@ -5,7 +5,7 @@
 ;; Author: Debanjum Singh Solanky <debanjum@gmail.com>
 ;; Version: 0.0.0
 ;; Package-Requires: ((emacs "27.1") (transient "0.3.0"))
-;; URL: https://github.com/debanjum/khoj/tree/master/src/khoj/interface/emacs
+;; URL: https://github.com/debanjum/khoj/tree/master/src/interface/emacs
 
 ;;; License: