Improve launcher file dialog initial paths (ggml-org#740)

- In the launcher, if an existing value is set for a file value (e.g.
Model), use that file's directory the initial directory when the
file dialog is opened with 'Browse'.
- In the launcher always set the intial directory for 'Load' to
cwd.

Author: one-lithe-rune

koboldcpp.py

@@ -1573,7 +1573,9 @@ def makelabelentry(parent, text, var, row=0, width= 50,tooltip=""):
     def makefileentry(parent, text, searchtext, var, row=0, width=200, filetypes=[], onchoosefile=None, singlerow=False, tooltiptxt=""):
         makelabel(parent, text, row,0,tooltiptxt)
         def getfilename(var, text):
-            fnam = askopenfilename(title=text,filetypes=filetypes)
+            initialDir = os.path.dirname(var.get()) 
+            initialDir = initialDir if os.path.isdir(initialDir) else os.getcwd()
+            fnam = askopenfilename(title=text,filetypes=filetypes, initialdir=initialDir)
             if fnam:
                 var.set(fnam)
                 if onchoosefile:
@@ -2230,7 +2232,7 @@ def load_config():
         file_type = [("KoboldCpp Settings", "*.kcpps")]
         global runmode_untouched
         runmode_untouched = False
-        filename = askopenfilename(filetypes=file_type, defaultextension=file_type)
+        filename = askopenfilename(filetypes=file_type, defaultextension=file_type, initialdir=os.getcwd())
         if not filename or filename=="":
             return
         with open(filename, 'r') as f: