Polish journal entry save buttons and header controls

- Add hover titles to all save buttons
- Match warning color scheme across floating, inline, and header save buttons
- Fix floating save button visibility (Tailwind v4 hidden/md:inline-flex conflict)
- Hide floating save when no unsaved changes using {#if}
- Hide Config button when not in admin edit mode
- Remove the mobile/backup explicit Save button from header (redundant)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/routes/journals/ae_comp__journal_entry_editor.svelte

@@ -4,7 +4,9 @@
  * Extracted 2026-01-08 to modularize the massive Journal Entry view.
  * Handles: CodeMirror vs Plain vs Rendered HTML for both View and Edit modes.
  */
-import { LockKeyhole, RefreshCcw, Save } from '@lucide/svelte';
+import {
+    LockKeyhole, RefreshCcw, Save
+} from '@lucide/svelte';
 import { ae_loc } from '$lib/stores/ae_stores';
 import { journals_loc } from '$lib/ae_journals/ae_journals_stores';
 import AE_Comp_Editor_CodeMirror from '$lib/elements/element_editor_codemirror.svelte';
@@ -67,6 +69,7 @@ const preferred_viewer = $derived(
                 <div
                     class="prose dark:prose-invert w-full max-w-none overflow-x-auto rounded-lg border border-gray-200 bg-white p-4 shadow-lg dark:border-gray-700 dark:bg-gray-900">
                     <!-- The rendered HTML branch is intentionally trusted input from the journal editor pipeline. -->
+                    <!-- eslint-disable-next-line svelte/no-at-html-tags -->
                     {@html tmp_entry_obj?.content_md_html || ''}
                 </div>
             {/if}
@@ -120,21 +123,30 @@ const preferred_viewer = $derived(
                     placeholder="Edit content..."></textarea>
             {/if}
 
-            <!-- Floating Save Button -->
-            <button
-                type="button"
-                onclick={on_save}
-                disabled={!has_changed}
-                class="btn btn-sm md:btn-md lg:btn-lg preset-filled-success fixed top-84 right-6 z-20 hidden min-w-32 shadow-xl transition-all md:inline-flex"
-                class:hidden={!has_changed}>
-                <Save size="1.2em" class="mr-2" /> Save
-            </button>
+            <!-- Floating Save Button (desktop only) -->
+            {#if has_changed}
+                <button
+                    type="button"
+                    onclick={on_save}
+
+                    class="
+                        btn btn-sm md:btn-md lg:btn-lg preset-tonal-warning hover:preset-filled-warning-500
+                        fixed top-84 right-6 z-20
+                        min-w-32 shadow-xl
+                        max-sm:hidden
+                        "
+                    title="Save changes"
+                    >
+                    <Save size="1.2em" class="" />Save
+                </button>
+            {/if}
 
             <!-- Inline Save Button (Mobile/Context) -->
             <button
                 type="button"
                 onclick={on_save}
                 disabled={!has_changed}
+                title="Save changes"
                 class="btn preset-tonal-warning hover:preset-filled-warning-500 mt-4 w-full max-w-96"
                 class:invisible={!has_changed}>
                 <Save size="1.2em" class="mr-2" /> Save Changes